NoCubes

- Fix configs not being able to save
- Fix collisions not being disabled on vanilla servers
- Added lots of debug logging
- Fix not being able to toggle smoothness in singleplayer (due to lack of permission)
- Pressing n now toggles the smoothness of all blockstates for the current block (crouching while pressing n toggles the individual blockstate)
- Removed the extraSmoothMesh config option and replaced it with equivalent options in the meshGenerator option
- Fix issues with the vanilla renderer's ambient occlusion when collisions were enabled
- Players now suffocate when fully inside smooth terrain
- The suffocation overlay now properly shows up when the player is fully inside smooth terrain
- 3rd person camera now behaves properly when the player is very close to smooth terrain
- Issues with block placement (e.g. with redstone) when collisions are enabled have been resolved (snow still has weirdness)

- Add (theoretical) compatibility with OptiFine HD_U_G7

Note: This upgrades NoCubes' networking - you can't use this with a server running an older NoCubes version