change normal texcoord to normal

Fixed a problem with the shadow ramps

When I changed some code to fix stuff with a face lightmap issue it introduced an error where it was treating the use shadow ramp flag as always off no matter what.

Update shadow.fxsub

Fixed yet another issue with the soft shadow

I'm really not batting a thousand today so far. I had the branches inverted

Added post fx

Removed the janky glow code from the post_rim shader and made it it's own shader. This was done to minimize weird artifacts from the previous version which utilized the main screen texture with a texture format that supports values higher than 1.0f