[Hub Generated] Review request for Microsoft.Insights to add version stable/2019-03-01 (#12232)

* Fixed swagger validations for api version 2019

* reverted error response change and suppress

* removed redundant error details

* renamed suppression rule

* fixed suppression

Author: yashmuel

specification/monitor/resource-manager/Microsoft.Insights/stable/2019-03-01/metricBaselines_API.json

@@ -36,7 +36,7 @@
     }
   },
   "paths": {
-    "/{resourceUri}/providers/microsoft.insights/metricBaselines": {
+    "/{resourceUri}/providers/Microsoft.Insights/metricBaselines": {
       "get": {
         "tags": [
           "Baseline",

specification/monitor/resource-manager/readme.md

@@ -618,6 +618,9 @@ directive:
     from: dataCollectionRuleAssociations_API.json
     where: $.paths
     reason: 'Operations API is defined in a separate swagger spec for Microsoft.Insights namespace (https://github.com/Azure/azure-rest-api-specs/blob/master/specification/monitor/resource-manager/Microsoft.Insights/stable/2015-04-01/operations_API.json)'
+  - suppress: R4007
+    from: metricBaselines_API.json
+    reason: 'Updating the error response to the new format would be a breaking change.'
 ```
 
 ### Tag: profile-hybrid-2019-03-01