Improvements to anvil crushing rules

[manyrandomthings]

• renewableSand and renewableIce have been rewritten to be a bit simpler
• renewableIce now supports setting the number of ice to crush with new rule renewableIceCrushCount
• renewableIceCrushCount can be set to any value 1-9

[clarfonthey]

I wonder if it might be simpler to just make a generic anvil crushing recipe type, so that the result can be configured with data packs instead of requiring custom carpet settings. Would also have the benefit of being displayed in mods like REI.

[altrisi]

Wondering if it'd be nicer to instead have the renewableIce rule taking a number argument instead (it'd have to be a string for backwards compat, with true being 3 and false being off). Also wondering if there's a reason for the 9 count limit.