Lua colorlib: extracolormap support

Field	Description	Returns	Accepts
red	Red color channel	uint8	uint8
green	Green color channel	uint8	uint8
blue	Blue color channel	uint8	uint8
alpha	Alpha	uint8	uint8
colors	RGBA colors	uint8 r, uint8 g, uint8 b, uint8 a	uint32 rgb, uint32 rgba, string rgb_web_color, string rgba_web_color
fade_red	Red fade color channel	uint8	uint8
fade_green	Green fade color channel	uint8	uint8
fade_blue	Blue fade color channel	uint8	uint8
fade_alpha	Fade alpha	uint8	uint8
fade_colors	Fade RGBA colors	uint8 r, uint8 g, uint8 b, uint8 a	uint32 rgb, uint32 rgba, string rgb_web_color, string rgba_web_color
fade_start	Fade start range	uint8	uint8
fade_end	Fade end range	uint8	uint8
colormap	Light table	lighttable	Cannot be set

Access	Description	Returns
lighttable table[row]	Gets a row (indexes range from 1 to 34) from a light table	Colormap for the specified row

Function	Parameters	Description	Returns
P_GetSectorColormapAt	sector sec, fixed x, fixed y, fixed z	Returns the sector sec's color at the specified XYZ coordinates. sec can be nil, making the call equivalent to P_GetSectorColormapAt(R_PointInSubsector(x, y).sector, x, y, z)	Sector colormap (extracolormap_t)

New sector fields:

Field	Description	Returns	Accepts
colormap	The colormap of the sector, if it has one.	extracolormap_t or nil	Cannot be set