Re-modded hardpoints file to include changes from latest game update

Fixed variant name to have - instead of _
Added techbase tags

Reworked arc injection to reduce potential conflicts and enable for campaign mode.
Changed story and missions to remove dependency on DLC4.

Small update to fix potential conflict with DLC 6.
Please note that same type of update will likely be needed for upcoming DLC 7.

Reworked mech files, now it also works in instant action. Increased trait slots to 9. Minor text fixes.