[Semi-Modular] Adds neck-item support for Muzzled variants, gives one… #1807

Job	Run time
Collect data for other tasks	13s
Run Linters	2m 5s
Compile Maps	3m 59s
Windows Build	2m 38s
Integration Tests (birdshot) / run_integration_tests	3m 43s
Integration Tests (deltastation) / run_integration_tests	3m 44s
Integration Tests (blueshift) / run_integration_tests	3m 44s
Integration Tests (gateway_test) / run_integration_tests	3m 43s
Integration Tests (icebox) / run_integration_tests	3m 42s
Integration Tests (kilostation2) / run_integration_tests	3m 43s
Integration Tests (metastation) / run_integration_tests	3m 43s
Integration Tests (multiz_debug) / run_integration_tests	3m 42s
Integration Tests (northstar) / run_integration_tests	3m 43s
Integration Tests (nssjourney) / run_integration_tests	3m 55s
Integration Tests (runtimestation) / run_integration_tests	3m 43s
Integration Tests (tramstation) / run_integration_tests	3m 52s
Integration Tests (voidraptor) / run_integration_tests	3m 42s
Alternate Tests (515, 1603, runtimestation) / run_integration_tests	3m 44s
Check Alternate Tests	0s
Compare Screenshot Tests	21s
	1h 1m 39s

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