DolphinQt / VideoCommon: Add additional texture dumping options. Specifically, this enables users to choose whether to dump mip maps, base level textures, or both.

Source/Core/VideoCommon/VideoConfig.h

@@ -102,6 +102,8 @@ struct VideoConfig final
 
   // Utility
   bool bDumpTextures;
+  bool bDumpMipmapTextures;
+  bool bDumpBaseTextures;
   bool bHiresTextures;
   bool bCacheHiresTextures;
   bool bDumpEFBTarget;