message: Convenience update to PipelineResourceDesc constructor
diff: @@ -148,7 +148,7 @@ struct PipelineResourceDesc
  const char* _Name,
  Uint32 _ArraySize,
  SHADER_RESOURCE_TYPE _ResourceType,
  - SHADER_RESOURCE_VARIABLE_TYPE _VarType,
  + SHADER_RESOURCE_VARIABLE_TYPE _VarType = SHADER_RESOURCE_VARIABLE_TYPE_MUTABLE,
  PIPELINE_RESOURCE_FLAGS _Flags = PIPELINE_RESOURCE_FLAG_NONE)noexcept :
  Name {_Name },
  ShaderStages{_ShaderStages},
  