Add additional homography types

[bbrucee]

I was wondering if it was planned to add these additional homography types to gocv I hacked it in by adding it to the enum types and it seemed to work but I am not aware if there was a reason why these haven't been exposed

GoCV homography enum: https://github.com/hybridgroup/gocv/blob/release/imgproc.go#L1752 OpenCV homography enum: https://docs.opencv.org/4.x/d9/d0c/group__calib3d.html#gga58a3bc75c7337534ea9c1697b928cae0ae59a3f6677ddd05b96a298a6c24fcbe6