gl/vk/rsx: Refactoring; unify texture cache code
gl: Fixups
- Removes rsx::gl::texture class and leave gl::texture intact
- Simplify texture create and upload mechanisms
- Re-enable texture uploads with the new texture cache mechanism
rsx: texture cache - check if bit region fits into dst texture before attempting to copy
gl/vk: Cleanup
- Set initial texture layout to DST_OPTIMAL since it has no data in it anyway at the start
- Move structs outside of classes to avoid clutter
Properly set up vulkan API version when creating instance
Fix gcc error about passing function result by reference
Fix alot of warnings in VKGSRender project
More fixes for gcc
Fix texture create function
Rebase on current master; Refactor vertex upload code
Fix build; Minor fixes
Start preparations for merge
Fix generic indexed drawing bugs
Define WIN32_KHR only for windows
Remove linking against vulkan-1.lib
* get_placed_texture_storage_size returns more accurate result (fix crash in Outrun)
* Factors lot of code and use integer type more carrefully
* Treat warning as error in TextureUtils.cpp
