Functional Fluids

Implemented some more behavior/fixed some more bugs

• Thick air is once again scary for mobs
• Mobs can now float in, and pathfind across, modded fluids
• River of Time no longer drowns
• Configurable Fluid now respects visibility config (so you can make an invisible configurable fluid)
• Did some changes behind the scenes to make these affects apply to any properly configured modded fluid (I'm pretty close to splitting the fluid API portion off into its own mod)
• Placing a water bucket in a cool lava cauldron now creates a full water cauldron
• Fluids now make sounds when picked up with a bucket. Correct sounds, even
• Updated to "stable" NeoForge, now that it's finally out... which added nothing, but nominally means they won't break my code going forward