GC0308 support

[micky-xie]

is there anybody use GC0308 camera? it fails at camera.init()
import camera
try:
camera.init(0, format=camera.JPEG)
except Exception as e:
camera.deinit()
camera.init(0, format=camera.JPEG)

Traceback (most recent call last):
File "", line 8, in
OSError: Camera Init Failed