Deoldify Vapoursynth filter

[Dan64]

To simplify the development on my side, and I hope also on your side.
From the point of view of the GUi are just 2 additional models other that "modelscope" and "artististic".

In the HAVC_ddeoldify when are used the model 2 and 3 in ddcolor_p, like in:

clip = HAVC_ddeoldify(clip=clip, method=1, ddcolor_p=[2, 16, 1, 0, True], ddtweak=False)
or
clip = HAVC_ddeoldify(clip=clip, method=1, ddcolor_p=[3, 16, 1, 0, True], ddtweak=False)

will use the new "Colorizer" code and not DDcolor.

The 2 new models have the same instability problems than DDcolor, in this way I can use the filters already developed to stabilize DDcolor, to stabilize also the siggraph17 and eccv16 color models.

I will post a comparison in the thread HAVC Filter User Guide 

Dan