* Add a loading screen for the preloading textures
*The PreloadTextures() function is called from the EmuThread to prevent citra to freezing
*Add a the preloading textures loadingscreen in loading_screen.cpp
*Add custom_tex_manager.reset() in core.cpp to release ram memory after exiting a game
* Add custom textures loading in EmuThread
* Remove useless variable
* Revert "Add custom textures loading in EmuThread"
This reverts commit 45ed46fa09159f782c5d20a4330b4eb7cfcdc253.
* Moved include from bootmanager.h to bootmanager.cpp
322d7a8287