Removes the -DPUBLIC_RELEASE flag. Cemu's debug asserts are now only enabled if the build configuration is Debug. Similarly, on Windows the console is only shown for Debug builds.
2.0 introduced a race condition where the shader cache loading screen could load shaders before the graphic packs finished activating, potentially bypassing custom shaders.
Also removed legacy GraphicPack interface (GraphicPack.cpp/.h) since it was only kept around for Cemuhook and removed u8string variant of cemuLog_force since it's no longer used
