health: Add option to disable health-populate

The Health populate calls GetManagedObjects at `/` which can take a lot
of time. Add the option to disable to improve performance if it is not
needed.

Tested:
```
$  meson build -Dhealth-populate=disabled
...
 User defined options
    backend                               : ninja
    health-populate                       : disabled
```

Build passed.

Health Status removed. Some resource still create HealthPopulate, but
does not populate. It will require further refactoring to clean it out.

Testing on `/redfish/v1/Chassis?$expand=.($levels=1)`

On 14 chassis, from about 2.5 seconds to 400 ms. :)

Before:
```
Getting times for chassis
Getting good line count with wget -q -O- localhost:80/redfish/v1/Chassis?$expand=.($levels=1)
Line count: 980
17:05:56: real 0m2.908s user 0m0.000s sys 0m0.030s
17:05:59: real 0m2.414s user 0m0.010s sys 0m0.010s
17:05:03: real 0m3.410s user 0m0.000s sys 0m0.020s
17:05:09: real 0m2.372s user 0m0.000s sys 0m0.010s
17:05:13: real 0m3.407s user 0m0.010s sys 0m0.000s
17:05:19: real 0m2.420s user 0m0.010s sys 0m0.000s
17:05:23: real 0m3.463s user 0m0.010s sys 0m0.000s
17:05:29: real 0m2.414s user 0m0.000s sys 0m0.010s
17:05:33: real 0m2.843s user 0m0.010s sys 0m0.010s
17:05:38: real 0m2.512s user 0m0.000s sys 0m0.020s
17:05:42: real 0m2.474s user 0m0.000s sys 0m0.010s
17:05:47: real 0m2.557s user 0m0.010s sys 0m0.010s
17:05:52: real 0m2.439s user 0m0.020s sys 0m0.000s
17:05:56: real 0m3.127s user 0m0.010s sys 0m0.000s
17:05:01: real 0m2.563s user 0m0.020s sys 0m0.000s
17:05:06: real 0m2.392s user 0m0.020s sys 0m0.020s
17:05:10: real 0m2.405s user 0m0.020s sys 0m0.000s
17:05:15: real 0m2.514s user 0m0.010s sys 0m0.010s
17:05:19: real 0m2.809s user 0m0.020s sys 0m0.010s
17:05:24: real 0m2.944s user 0m0.010s sys 0m0.010s
17:05:29: real 0m2.537s user 0m0.010s sys 0m0.000s
17:05:34: real 0m3.290s user 0m0.000s sys 0m0.000s
17:05:39: real 0m2.601s user 0m0.040s sys 0m0.000s
17:05:43: real 0m2.398s user 0m0.010s sys 0m0.040s
17:05:48: real 0m2.664s user 0m0.000s sys 0m0.020s
17:05:53: real 0m2.323s user 0m0.010s sys 0m0.000s
17:05:57: real 0m3.033s user 0m0.000s sys 0m0.010s
17:05:02: real 0m3.243s user 0m0.000s sys 0m0.010s
17:05:07: real 0m2.604s user 0m0.010s sys 0m0.010s
17:05:12: real 0m2.813s user 0m0.010s sys 0m0.010s
17:05:17: real 0m2.325s user 0m0.020s sys 0m0.000s
17:05:21: real 0m2.577s user 0m0.010s sys 0m0.000s
17:05:26: real 0m2.882s user 0m0.030s sys 0m0.000s
17:05:31: real 0m2.572s user 0m0.000s sys 0m0.020s
17:05:35: real 0m2.678s user 0m0.010s sys 0m0.010s
17:05:40: real 0m2.656s user 0m0.010s sys 0m0.010s
17:05:45: real 0m2.921s user 0m0.020s sys 0m0.000s
17:05:49: real 0m2.723s user 0m0.000s sys 0m0.020s
17:05:54: real 0m2.910s user 0m0.010s sys 0m0.010s
17:05:59: real 0m2.601s user 0m0.020s sys 0m0.000s
17:05:04: real 0m2.615s user 0m0.000s sys 0m0.000s
```

After:
```
Getting times for chassis
Getting good line count with wget -q -O- localhost:80/redfish/v1/Chassis?$expand=.($levels=1)
Line count: 980
16:04:43: real 0m0.188s user 0m0.020s sys 0m0.000s
16:04:43: real 0m0.195s user 0m0.010s sys 0m0.000s
16:04:45: real 0m0.219s user 0m0.010s sys 0m0.000s
16:04:48: real 0m0.226s user 0m0.020s sys 0m0.000s
16:04:50: real 0m0.208s user 0m0.020s sys 0m0.010s
16:04:52: real 0m0.226s user 0m0.010s sys 0m0.010s
16:04:54: real 0m0.419s user 0m0.000s sys 0m0.010s
16:04:57: real 0m0.222s user 0m0.010s sys 0m0.020s
16:04:59: real 0m0.194s user 0m0.000s sys 0m0.010s
16:04:01: real 0m0.191s user 0m0.010s sys 0m0.010s
16:04:04: real 0m0.276s user 0m0.010s sys 0m0.020s
16:04:06: real 0m0.183s user 0m0.020s sys 0m0.000s
16:04:08: real 0m0.193s user 0m0.040s sys 0m0.000s
16:04:10: real 0m0.406s user 0m0.020s sys 0m0.010s
16:04:13: real 0m0.317s user 0m0.000s sys 0m0.000s
16:04:15: real 0m0.442s user 0m0.005s sys 0m0.005s
16:04:18: real 0m0.226s user 0m0.010s sys 0m0.000s
16:04:20: real 0m0.217s user 0m0.020s sys 0m0.000s
16:04:22: real 0m0.200s user 0m0.010s sys 0m0.030s
16:04:24: real 0m0.423s user 0m0.010s sys 0m0.010s
16:04:27: real 0m0.203s user 0m0.020s sys 0m0.010s
16:04:29: real 0m0.433s user 0m0.000s sys 0m0.000s
16:04:31: real 0m0.318s user 0m0.020s sys 0m0.000s
16:04:34: real 0m1.206s user 0m0.000s sys 0m0.010s
16:04:37: real 0m0.403s user 0m0.000s sys 0m0.020s
16:04:39: real 0m0.353s user 0m0.010s sys 0m0.000s
16:04:42: real 0m0.291s user 0m0.000s sys 0m0.030s
16:04:44: real 0m0.742s user 0m0.020s sys 0m0.010s
16:04:47: real 0m0.369s user 0m0.010s sys 0m0.000s
16:04:49: real 0m0.215s user 0m0.020s sys 0m0.000s
16:04:52: real 0m0.204s user 0m0.000s sys 0m0.010s
16:04:54: real 0m0.418s user 0m0.000s sys 0m0.000s
16:04:56: real 0m0.215s user 0m0.000s sys 0m0.010s
16:04:58: real 0m0.202s user 0m0.010s sys 0m0.010s
16:04:01: real 0m0.202s user 0m0.010s sys 0m0.010s
16:04:03: real 0m0.212s user 0m0.010s sys 0m0.000s
16:04:05: real 0m0.694s user 0m0.010s sys 0m0.010s
16:04:08: real 0m0.201s user 0m0.010s sys 0m0.010s
16:04:10: real 0m0.230s user 0m0.000s sys 0m0.020s
16:04:12: real 0m0.206s user 0m0.010s sys 0m0.010s
16:04:15: real 0m0.446s user 0m0.010s sys 0m0.010s
```

Change-Id: I90b242e2cd24973420de871fedf9793dd1e310f3
Signed-off-by: Willy Tu <wltu@google.com>

2 files changed, 6 insertions, 0 deletions

diff --git a/config/bmcweb_config.h.in b/config/bmcweb_config.h.in
index ae98675d3c..1290bd652f 100644
--- a/config/bmcweb_config.h.in
+++ b/config/bmcweb_config.h.in
@@ -16,4 +16,7 @@ constexpr const char* mesonInstallPrefix = "@MESON_INSTALL_PREFIX@";
 constexpr const bool bmcwebInsecureEnableHttpPushStyleEventing = @BMCWEB_INSECURE_ENABLE_HTTP_PUSH_STYLE_EVENTING@ == 1;
 
 constexpr const char* bmcwebLoggingLevel = "@BMCWEB_LOGGING_LEVEL@";
+
+constexpr const bool bmcwebEnableHealthPopulate = @BMCWEB_ENABLE_HEALTH_POPULATE@ == 1;
+
 // clang-format on
diff --git a/config/meson.build b/config/meson.build
index b13a023418..bd8aada7c1 100644
--- a/config/meson.build
+++ b/config/meson.build
@@ -12,6 +12,9 @@ insecure_push_style_notification = get_option('insecure-push-style-notification'
 conf_data.set10('BMCWEB_INSECURE_ENABLE_HTTP_PUSH_STYLE_EVENTING', insecure_push_style_notification.enabled())
 conf_data.set('MESON_INSTALL_PREFIX', get_option('prefix'))
 conf_data.set('HTTPS_PORT', get_option('https_port'))
+conf_data.set('HTTPS_PORT', get_option('https_port'))
+enable_health_populate = get_option('health-populate')
+conf_data.set10('BMCWEB_ENABLE_HEALTH_POPULATE', enable_health_populate.enabled())
 
 # Logging level
 loglvlopt = get_option('bmcweb-logging')