* adding pl2 as a fiel format and an asset manager for pl2 files
* adding pl2 as a file format and an asset manager for pl2 files
* pl2 asset manager and file format
* added call in main.go to load palette transforms
* removed incorrect PaletteTransformType declarations from main.go
* removingn bad resource path for palette transform
* PL2 file format added, added to asset management
PL2 files are beside palette files in the mpq
These files define palette transforms of their respective base palette.
I've bound a command to d2term (in d2asset.go)
load_pl2 <path>
* Clean up PL2 asset stuff
removed pl2 stuff from d2datadict, didn't belong in there
removed d2term debug binding
* minor cleanup for d2pl2
