Quoted non-string values remain quoted after serialization (#442)

* add failing test for environment variable and annotation yaml serialization

* simplify the test case

* initial tests passing with StringQuotingEmitter

* cleanup

* expand test

* add attribution

* run dotnet format

src/KubernetesClient/Yaml.cs

@@ -135,6 +135,7 @@ namespace k8s
                     .WithNamingConvention(new CamelCaseNamingConvention())
                     .WithTypeInspector(ti => new AutoRestTypeInspector(ti))
                     .WithTypeConverter(new IntOrStringYamlConverter())
+                    .WithEventEmitter(e => new StringQuotingEmitter(e))
                     .BuildValueSerializer();
             emitter.Emit(new StreamStart());
             emitter.Emit(new DocumentStart());