Link shared library to opencv

Linking libraspicamcv.so against opencv_core and opencv_highgui allows the SO to be loaded in python using ctypes.
Otherwise, the cvResize function will not be recognized. Sample python code:


    from ctypes import *
    cdll.LoadLibrary("./libraspicamcv.so")
    libraspicam = CDLL("./libraspicamcv.so")