//Header (7 bytes)
//1 byte 	Version
//1 byte 	Colour Depth
//			    0  1 bit monochrome
//			    1  8 bit grey scale
//			    2  8 bit colour
//			    3  24 bit colour (RGB)
//			    4  Colour Lookup Table
//2 Bytes	Image width (px)
//2 Bytes	Image height (px)
//1 Byte	Compression
//			    0  none
//			    1 - RLE
//                  1 byte data
//                  2 bytes byte count
//              2 - LZW
//                  12 bit
//Data N Bytes
//N Bytes	Image data
//N Bytes	CLUT (Optional)