[request] block change over time placed in-world

[nephatrine]

There are mods that add things like mud blocks or adobe that start out wet and dry over time when placed in-world. Similarly there are mods that add blocks that change over time when placed adjacent to water like Forestry bog earth to peat or vanilla concrete powder (see #17).

It would be neat to be able to have such transformations via crafttweaker like provide an input block, number of ticks, output block, and whether the block should/should not be adjacent to water.

As a nice-to-have, but not really needed option maybe being able to specify whether the block needs to see sky above it or specific biome dictionary tags would also be useful.