MM-27688-OpenId Connect (#16222)

* implement openid connect

* update error strings

* handle OpenIdSetting.Secret as FAKE SETTING

* add openid to telemetry

* update config defaults, add telemetry

* fix bug with Office365

* Retrieve Office365 AuthData from IdToken

* fix linter

* add feature flag, reset defaults for config

* fix build error

* fix unit tests

* add authentication permission to Feature
Flags

* turn off feature flag

* set default button color

* set default button color only on openid

* fix for merging FeatureFlags in config

* remove feature flag

* revert config changes

* remove debug statements

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

utils/license.go

@@ -139,6 +139,7 @@ func GetClientLicense(l *model.License) map[string]string {
 		props["Metrics"] = strconv.FormatBool(*l.Features.Metrics)
 		props["GoogleOAuth"] = strconv.FormatBool(*l.Features.GoogleOAuth)
 		props["Office365OAuth"] = strconv.FormatBool(*l.Features.Office365OAuth)
+		props["OpenId"] = strconv.FormatBool(*l.Features.OpenId)
 		props["Compliance"] = strconv.FormatBool(*l.Features.Compliance)
 		props["MHPNS"] = strconv.FormatBool(*l.Features.MHPNS)
 		props["Announcement"] = strconv.FormatBool(*l.Features.Announcement)