Simply Jetpacks, Items and Models

-Added all Armored Jetpack, items and models
-Added all remaining Fluxpack, items and models
-Added all remaining Armored Fluxpack, Items and models
-Added Invar Armor (Thermal Expansion)
-Fix Hardened Jetpack (was a little different from the others)
Merge pull request #35 from EddyHg80/master

Simply Jetpacks, Items and Models