Filler block breaking

Reenables the ability for the Filler to drop broken blocks respecting config options for item lifetime, also enables Builder and Quarry (When clearing space) to do the same, fixes rounding error causing block breaking sounds to play for the wrong block when the Filler broke it and the block was located on a negative axis, and clamps minimum hardness of blocks to one so as to make clearing dirt not a free operation.

Tested on Forge 1059 on SSP and on a local server.