1.649 Update - MLRS and more raid mode improvements

Raid mode improvements
- added MLRS, HV rockets, 40mm HE grenades
- damage calculation redone to use Rust's system of separate damage types with unique protection
values for each part
- splash damage calculation improved to be more accurate
- more deployables are now included in this mode
- larger deployables now use multiple support checks instead of only the prefab origin
Other changes
- added visible bag/bed respawn timer range
- all deployable ranges can be toggled below the place panel, added more colors to differentiate types
- max undo/redo levels changed from 10 to 15
- enabled distance mesh culling for smaller deployables, should help performance with large builds
- place panel search filter now searches with every text field change
- more accurate ramp collider, middle wasn't redblocking
- fix for large boxes overhang limit, noticeable on loot room tri floors
- added warning when trying to load copy-paste format when not in that mode
- copy-paste exports now include door state (open/closed)