To avoid processing spikes where catch-up is non-essential
Disable in: Lavacooling, grass growing, grass removal
and all fire mod ABMs

Update 'disable fire' documentation in conf.example

Rename in game.conf and documentation
Update game_api.txt documentation for bucket API and tree functions
Fix tab, space and comment formatting in game_api.txt
Rename in mod READMEs

Add extinguish sounds (from default mod lavacooling)
'disable fire' setting extinguishes fire quickly using a dedicated ABM
'disable fire' also disables all other ABMs
Simplify flammable node removal ABM
Speed up node ignition, it was too slow
Add 'sunlight propagates = true' and 'paramtype = "light" to flame
Balance fire sounds' gain

Increase chance value of ABMs
Disable ignition from a distance
Only detect neighbouring extinguishing nodes
Fix code style issues and add comments

Implemented nodes:
- Steel Door: Ignores explosion
- Locked Chest: Ignores explosion
- Fire: Ignores explosion
- TNT: Starts burning
- Burning TNT: Explodes immediately
- Gunpowder: Starts burning
- Burning Gunpowder: Ignores explosion

This reverts commit dcce6e97.