* improved apiclient.mustache to keep it dry, sharing a single exec with Action<> delegate.
* updated samples and test
* Removed async from ApiClient.mustache
Updated samples
* Revert change to CSharpClientDeepObjectTest.java
* Fix async await (it was not waiting creating a null exception)
Updated samples
* Fix File IO namespace with using directive
* Improved comments on new methods
Added new DRY method DeserializeRestResponseFromPolicy
* Fix comments and parameters for new method DeserializeRestResponseFromPolicy
Updated samples
* renamed OpenAPIClient-httpclient to Petstore
* updated bin artifacts
* renamed OpenAPIClientCoreAndNet47 to MultipleFrameworks
* updated bin artifacts
* renamed OpenAPIClient-net47 to Petstore
* renamed OpenAPIClient-net48 to Petstore
* updated bin artifacts
* renamed OpenAPIClient-restsharp-name-parameter-mappings to ParameterMappings
* updated bin artifacts
* renamed OpenAPIClientCore to Petstore
* updated bin artifacts
* renamed OpenAPIClient-net7.0-useDateTimeForDate to UseDateTimeForDate
* updated bin artifacts
* renamed OpenAPIClient-net5.0 to EnumMappings
* updated bin artifacts
* renamed OpenAPIClient-ConditionalSerialization to ConditionalSerialization
* updated bin artifacts
* renamed OpenAPIClient to Petstore
* updated bin artifacts
* renamed OpenAPIClient-unityWebRequest to Petstore
* updated bin artifacts
* updated appveyor
* updated bin artifacts
* updated bin artifacts
* comenting out a sample project with no csproj file
* updated bin artifacts