virtual gamepad editing and settings
home directory setup during onboarding
start content browser at app startup after getting permission
Use imgui osd to display error messages (msgboxf)
Added About tab in settings with version, git hash and Send logcat
button (android)
Added new OSD notification feature, combined with FPS counter, moved to
GUI
OSX: don't create and manage a new emulator thread but use existing one
OSX: keyboard and mouse use new input system
Get rid of the renderer thread. It is now the main/UI thread on all
platforms. The emulator runs in a separate thread.
Content browser displayed at startup.