spearmint: Read FAKK's portalsky shader keyword

Not entirely sure what it's suppose to do though.
spearmint: Ignore FAKK map compiler shader keywords
spearmint: Ignore FAKK's force32bit keyword
spearmint: Support FAKK's noDepthTest shader keyword
spearmint: Support FAKK's rgbGen colorwave .. shader feature

colorwave is a const color multiplied by a waveform.