Solas Shader

Features added/changed:

• Added blocky clouds option
• Added Vietnamese language support (thanks to godkyo98)
• Added iPBR emission to activated End portal frames and tweaked other iPBR materials
• Tweaked light colors of certain emissive blocks

Features fixed:

• Fixed compile errors in The End and The Nether when certain options were toggled
• Fixed volumetric lighting not showing up in caves
• Fixed Apple silicon support (VERY experimental, works best on Optifine and will probably break in some scenarios). Still got some work to do later
• Fixed PBR being entirely non existent in both The Nether and The End dimensions
• Some other small but important fixes regarding foliage, lighting, etc