have SAM range increase when stacked

[evanpelle]

currently h-bombs outrange SAMs. I think we should increase the range of sams a bit with each level. So perhaps a level 5 SAM for example could outrange a hydrogen bomb.

[NewYearNewPhil]

I'm happy to give this a shot, incorporating the input from the various discord threads about this

[ryanbarlow97]

#2351 was merged, can close now