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TIMG Chunk format

TIMG Chunk format describe an image inside a texture.
TIMG Chunk ARE NOT stand alone for now but embedded into the TEXB stream format.
IMAG File ARE stand alone but are just link information to the TEXB file.

2011/12/06 V0.1 : First Draft
2011/12/09 V0.15: 
2012/01/12 V0.2 : Added information about link file and
2012/01/26 V0.3 : Added Width & Height member to have virtual image size.
2012/01/27 V0.4 : Added concept of map with sub tiles.
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[TIMG]			(u32)
Size			(u16)
String Length	(u16)
	Length include 0 and padding alignment
C String 		(0 included, + padding align 2)
		I + full resource path name
		Ipackage.package2.filenameB.imag
SubCount		(u16)

	x SubCount
		VertexCount		(u8)
		IndexCount		(u8)
		Width			(u16)
		Height			(u16)
		CenterX			(u16)
		CenterY			(u16)

			(multiply by VertexCount)
			X					(u32 fixed 16.16)
			Y					(u32 fixed 16.16)
			
			(multiply by IndexCount)
			Index				(u8)

Note : due to the fact that TIMG is embedded into a TEXB stream, there is no constant
pool referencing to the texture name.

Note : Stand alone imag file linking to .texb files
[LINK][Size(u32)]C String 0 terminated.

 Ex : [LINK][31]package.package2.filename.texb[0]



