Added proper spawnicons

Redone Textures on the physgun Generator texture, i screwed up in the creation process when making it brighter, should be good for now.

Further tweaks and adjustments to Specular, not perfect, also manually brighted physgun generator texture to be consistent with other textures, as the gravity gun version used a material proxy thats not possible to use with player colors to brighten it up.

Corrected specular on two textures for the physgun version causing them to shine incorrectly on the capacaitor and coils where it was colored, and was inconsistent with the gravity gun version.

The Coterminus Update:

replaced/added textures from the mod "Coterminus" which are identical to the originals, but with normals, alpha textures, and nice new colorable textures based on them, also fixed a worldmodel texture error on the front coils for the physgun version where it was left its original color and lacked a alpha.

new screens to show the changes soon.

Hexed textures for all models to increase compatibility with other Tau Cannon addons using the Leak model, modified or otherwise

Fixed the V_hands gravity gun using the super gravity gun textures, whoops.

Not that it matters too much, i made them incase people want to backport this into HL2 and not many addons use the V_hand version anyway, but its not too difficult to fix.

Initial addon creation.