Add tether gold

[coinnerd]

Hi! Could you please add

  {
	    "code": "XAUt",
	    "name": "Tether Gold",
	    "scale": 6,
	    "is_supported": true,
	    "contract_address": "0x4922a015c4407f87432b179bb209e125432e4a2a",
	    "sale_address": "",
	    "contract_info": {},
	    "colors": [
	      "#e4c875",
	      "#e4c875"
	    ],
	    "type": "erc20",
	    "currency_id": "ethereum-mainnet:0x4922a015c4407f87432b179bb209e125432e4a2a"
	  }

thank you!