Fixed a few more broken groups. Vents should now properly be grouped on the build screen.

Removed some superfluous stuff from the Varient Groups file that was preventing new content from being visible in the build menu.

Fixed the basic assembler being accessible via scrolling through the blocks grouped with the survival kit in the build menu.

Added the ability to crush stone into gravel in the SKIT.
This is useful for making paint for the paint gun mod.

Changed it so that power cells in all batteries except the small small grid batteries no longer get scrapped.
The scrapping mechanic was meant to combat infinite power from grinding down and replacing batteries.
Since most batteries cannot be placed in this mod that is not a concern.

Solved the problem that was preventing me from hiding the Basic Assembler from the build menu so now that block is no longer available to place by players.

Removed the extra definitions from the files so now only the blocks that are changed are included.

Added the lockers and weapon racks back