Adds Railgun and it's variants to the game (Admin only) #1999

Job	Run time
Compile Maps	44s
Lint with OpenDream	27s
Find Maps to Test	11s
Run Linters	1m 19s
Windows Build	1m 17s
Alternate Tests	0s
Check Alternate Tests	0s
Unit Tests (chinook) / run_unit_tests	2m 44s
Unit Tests (chapaev) / run_unit_tests	2m 40s
Unit Tests (bigredv2) / run_unit_tests	2m 53s
Unit Tests (almayer) / run_unit_tests	3m 12s
Unit Tests (corsat) / run_unit_tests	3m 2s
Unit Tests (derelict_almayer) / run_unit_tests	3m 18s
Unit Tests (desert_dam) / run_unit_tests	2m 59s
Unit Tests (fiorina_sciannex) / run_unit_tests	2m 57s
Unit Tests (golden_arrow) / run_unit_tests	2m 47s
Unit Tests (golden_arrow_classic) / run_unit_tests	3m 0s
Unit Tests (ice_colony_v1) / run_unit_tests	2m 48s
Unit Tests (ice_colony_v2) / run_unit_tests	3m 16s
Unit Tests (kutjevo) / run_unit_tests	3m 8s
Unit Tests (lv522_chances_claim) / run_unit_tests	3m 10s
Unit Tests (lv624) / run_unit_tests	3m 24s
Unit Tests (lv624_repaired) / run_unit_tests	3m 6s
Unit Tests (new_varadero) / run_unit_tests	2m 56s
Unit Tests (new_varadero_repaired) / run_unit_tests	2m 48s
Unit Tests (prison_station_fop) / run_unit_tests	3m 18s
Unit Tests (rover) / run_unit_tests	3m 9s
Unit Tests (runtime) / run_unit_tests	3m 9s
Unit Tests (runtime_multiz) / run_unit_tests	3m 43s
Unit Tests (shivas_snowball) / run_unit_tests	2m 50s
Unit Tests (sorokyne_strata) / run_unit_tests	3m 14s
Unit Tests (whiskey_outpost_v2) / run_unit_tests	2m 58s
	1h 20m 27s

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