Complementary Shaders r5.0 Release Candidate 3 (Patreon)

This will most likely be the last release candidate. Now branded as "Complementary Shaders".

Changes over r5.0 Release Candidate 2:

- Reduced texture coating on Unbound style moon

- IntegratedPBR glowing ores are now enabled by default with the Unbound visual style

- Rainbows setting is now set to "After Rain" by default