Combined AMaZE and VNG4 demosaic

[HIRAM (Richard E Barber)]

@heckflosse

Fixed.

https://filebin.net/nesj62icf25f236r/RawTherapee_OSX_10.9_64_5.4-373-g039f68e54.zip?t=hqywo66q
ˆ-- on mac!