this was actually surprisingly easy, since it turns out these
are just C ABI wrappers around the C++ class android::Looper
from AOSP libutils.so, which is a dependency for art that we
therefore compile and distribute alongside it
NOTE: the main addition in this commit is WIP support for apps which
render on an EGL surface obtained using ANativeWindow_fromSurface
currently, this EGL surface is obtained by creating a 700x700 pixel
window with GLFW (the 700x700 size is hardcoded in several places)
and only Wayland is supported
ideally, we'd want to use a wayland subsurface to position the EGL
surface above the Surface widget it's associated with (and do
whatever for X11)
