Added Convenient Texture Baking

The bake texture button is a one click solution, with the proper settings.  If you're unfamiliar with baking, it's the process of taking the scene/shaders/lighting and rendering that into textures.  The settings will only look at the colors of texture.  This baked texture will export alongside your blend file as well as the original indexed color map incase you want to recreate the shader in your game engine.  Also instead of json files, a strip of colors in png format is exported, which is just more useful for game engines.