updated diagnostic severity for public api analyzer

Author: petesramek

.editorconfig

@@ -17,6 +17,27 @@ dotnet_code_quality_unused_parameters = non_public:suggestion
 
 #### Public API analyzer
 dotnet_public_api_analyzer.require_api_files = true
+dotnet_diagnostic.RS0016.severity = warning
+dotnet_diagnostic.RS0017.severity = warning
+dotnet_diagnostic.RS0022.severity = warning
+dotnet_diagnostic.RS0024.severity = warning
+dotnet_diagnostic.RS0025.severity = warning
+dotnet_diagnostic.RS0026.severity = warning
+dotnet_diagnostic.RS0027.severity = warning
+dotnet_diagnostic.RS0036.severity = warning
+dotnet_diagnostic.RS0037.severity = warning
+dotnet_diagnostic.RS0041.severity = warning
+dotnet_diagnostic.RS0048.severity = warning
+dotnet_diagnostic.RS0050.severity = warning
+dotnet_diagnostic.RS0051.severity = warning
+dotnet_diagnostic.RS0052.severity = warning
+dotnet_diagnostic.RS0053.severity = warning
+dotnet_diagnostic.RS0055.severity = warning
+dotnet_diagnostic.RS0056.severity = warning
+dotnet_diagnostic.RS0057.severity = warning
+dotnet_diagnostic.RS0060.severity = warning
+dotnet_diagnostic.RS0061.severity = warning
+
 
 #### Core EditorConfig Options ####