Preliminary xz-libs port

Signed-off-by: Vassilis Laganakos <vassilis@einval.com>
Preliminary port for libexpat

Signed-off-by: Vassilis Laganakos <vassilis@einval.com>
Preliminary port for mese glapi

Signed-off-by: Vassilis Laganakos <vassilis@einval.com>