Add python bindings #40

It would be really nice to have this with python bindings...
There is matplotlib as python library for plotting, but to create images from the plots to use in UI frameworks (or to use with cv2.imshow()) or whatever is rather cumbersome (and slow). I would like to have a faster alternative... as I use opencv to draw some lines over an image... an opencv native plotting library (that can be used with the python interface) would be rather cool.

I tried a little bit to create python bindings using the tools provided by OpenCV, but I failed.

Maybe there is some easy approach or someone has already done it (and I just didn't find it)