CS's Regenerating ore

Tired of those ore-growing plants, but don't want to spend your life digging whole world for resources?

- adds a special air-type blocks that replace broken vanilla ores, that places same ore some time later!

- every vanilla ore has it's own random tick chance to reappear!

- to successfully spawn, ore requires to be deep enough! (diamond resets only on y16 and lower, and so on). 

- if ore restores too quickly, you have the ability to change gamerule "slowerOreRegeneration" for slower ore generation!