SLG: Best of Terramity

Note: this is a beta

- Removed Orbital Railgun
-> didnt like the aesthetics no more and didnt do that much

- Readded Rambler mob
-> fixed Bug where Opposing Force heavy bones would still drop

- added Artifacts mod
-> removed duplicate items
-> made compatible with Terramity
-> primarly added for some footwear curio and mimics

- Removed Essentials mod
-> not needed anymore, due to fully tested multiplayer compatability

- added Roarinng Server Fix mod
-> fixes crash related to Servers with the Roaring mod

- fixed nametag recipe using wrong string tag

- replaced silver in dark metal recipe with platinum