Fixed RtlCompareString and RtlCompareStringN, they were very wrong, for CompareString the params are struct ptrs not char ptrs

Fixed a ton of clang-cl compiler warnings about unused variables, still many left. Fixed a lot of inconsistent override ones too

src/xenia/gpu/vulkan/vulkan_command_processor.h

@@ -48,8 +48,9 @@ namespace vulkan {
 
 class VulkanCommandProcessor final : public CommandProcessor {
  protected:
+#define OVERRIDING_BASE_CMDPROCESSOR
 #include "../pm4_command_processor_declare.h"
-
+#undef OVERRIDING_BASE_CMDPROCESSOR
  public:
   // Single-descriptor layouts for use within a single frame.
   enum class SingleTransientDescriptorLayout {