[client] 3d models code and assets cleanup #1532

Job	Run time
setup-environment	6s
test-scarb-fmt	13s
test-various (season_test)	45m 16s
test-various (combat_test)	1h 25m 27s
test-various (owner_test)	10m 40s
test-various (position_test)	2m 49s
test-various (resources_test)	52m 30s
test-various (config_test)	10m 25s
test-various (hyperstructure_test)	45m 30s
test-various (bank_test)	48m 26s
test-various (map_test)	29m 56s
test-various (resource_bridge_test)	1h 22m 44s
test-various (trade_test)	1h 10m 2s
test-various (realm_test)	43m 20s
test-various (guild_test)	1h 15m 29s
test-various (transport_test)	15m 15s
test-various (test_ownership_systems)	11m 7s
	10h 29m 15s

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