Ebin Resurrected

Fixes a number of mistakes I had previously made in development which were not picked up in my environment but prevented the shader from loading in other circumstances.

• Add emission support
• Add option to override texture resolution for parallax since the auto detection is not perfect

• Fix normal decoding - the Z component is now reconstructed from the X and Y.
• Support material AO
• Support predefined metals
• Auto texture resolution for parallax

• Drastically improve artificial lighting falloff
• Fix offhand lighting
• Prevent hand light and artificial light combining and flashbanging the player
• Update block.properties to include blocks which should wave that were introduced after Ebin development ceased
• Fix reflections in the Nether
• Improve lighting in the Nether and End
• Add fog in the Nether

• PCSS (variable penumbra) shadows! This means that shadows cast by objects further away will be softer.
• Noise used for reflections and shadows now changes when the camera moves, removing the weird effect where the noise noticeably sticks to the screen.

• Add coloured shadows

• Weather! The sky now turns grey when it's raining, and blocks get shiner based on their porosity!
• Specular reflections are almost completely fixed,
• Added 'dynamic noise' option which changes the noise used for reflections and shadows every frame.
• Improved settings menu

• Torches now have reasonable light falloff
• Handlights now work properly
• Improved shadow kernel
• Reorganise settings menu slightly

This release fixes several issues resulting in the shader not loading on Optifine or AMD GPUs.

• Fix SSR
• Implement rough reflections
• Modify light falloff on torches
• Revamp settings menu and defaults

This is the first 'stable' release of Ebin Resurrected. Changes from Ebin include

• Improved shadow mapping
• Transparent shadows (no colours yet)
• Improved specular map support (still experimental)
• Improved visibility in the Nether and End (still experimental)