added 3 demetional checking and setting of blocks.
added -1 as the skip sentinal.
fixed a bug with the previous code in the 2 dementional array and implemented it with the 3 demetional array.
Merge branch 'master' of https://github.com/JPisaBrony/Light-Processing

Conflicts:
	common/lightProcessing/block/BlockMachineCore.java