Allow shaders to embed texture parameter names

[JedTheKrampus]

When you want to add a texture parameter to a shader, there's no way to tell in the material editor which texture goes to which shader parameter without reading the code. The material editor should look at the shader code and look for comments on the same line that the sampler2D is declared. It could then take the name in that comment and put it in the material editor.

 

Pretty simple feature, right? If you want to make it so that people didn't name a sampler2D in the material editor unintentionally, you could make it so that it requires syntax like:

 

uniform sampler2D texture5; // @name Specular Power