Immersive Fixes - Old IE

Immersive Fixes for 1.12.2. Credit will be assigned where due when using IE code licensed under Blu's License of Common Sense.

Currently fixes:

#6248: Workbench creating stacks in excess of the stack limit

Fake lights becoming permanently stuck after breaking a floodlight, and numerous other floodlight fixes

Wire rendering fix, in addition to a cable alpha fix. More information on this and the above fix here.

I'm not very familiar with IE 1.12.2 and I've noticed that there are very few bug reports for me to go off of on the IE discord. Please submit issue reports for 1.12.2 IE to my issue tracker on the linked repository so that I can find other issues to fix.