Add support for YIQ and YDbDr color spaces

[LucianoTheWindowsFan]

Hi!

So OpenFX-Miscc does support a variety of color spaces... but only the "modern" ones.

Out of all the color spaces used on analog television, only YUV (PAL) is available.

Notably, the other color spaces are YIQ (NTSC) and YDbDr (SECAM). The latter is not to be confused with YPbPr (used on component video) or YCbCr (used in most modern day equipment). It would be interesting to see them supported through this plugin in a near future.

In case you're curious PAL is used in Argentina, Paraguay, Uruguay, Brasil, Europe, Africa, Asia and Oceania (with exceptions). NTSC is used in most of the Americas (e.g. the US, Canada, Bolivia, Chile, Colombia, Mexico, Panama, Peru, etc.), as well as Myanmar, Japan, South Korea, China (Taiwan only; the rest used PAL) and Palau. SECAM is used in France, as well as some ex-Soviet states and in a few Middle Eastern countries, in former Franco-Belgian colonies in Africa, as well as most of the Eastern Bloc and Greece before transitioning to PAL.