version 1.0.3 - haxelib release

• Added dispose() for 'Texture' to free opengl-ram
• Added feature that the texture-layer identifier can be optional now while set, add or remove textures to a Program
• Fixed (partial) old glitch with lanugage-server cache and macros, where into this case the Buffer-macro checks that the type was not already generated
• Fixed Element-generation into case where only use of @posY, @sizeY or @pivotY as alternative Float datatype