Hex's Default Shaders Rewrite

Updates GHub

• Added FXAA.
• Added SSAO.
• Added Uncharted2Tonemap (But brighter.), also, modified final.fsh.
• Changed every light color to White.
• Modified most of shader.
• Nether and The End will not have the same effects as Overworld until 1.0 Releases.
• Removed DH Support due to frame rate bugs.
• Solved Transparent entities bug.
• Trying to remove SSAO Artifact in screen. (See more glitches in issues thing)