remove most of the android ui remains
NativeGLActivity is the unique activity
handle window focus in/out events
refresh folder list when access to external storage is granted
record audio permission request must not overlap with external storage
perm req
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.
Edward Li