Closes #367 Reviewed-on: #1241
Endpoint for custom API: https://localhost:443/custom/addItem example request: { "type": "Weapon", "internalName": "/Lotus/Weapons/Grineer/Pistols/GrineerMicrowavegun/GrnMicrowavePistol", "accountId": "6488fd2e7bec200069ca4242" }
