feat: add usdt0 and usdc Rootstock tokens

Author: jonathansmirnoff

src/ethereum/info/rskInfo.ts

@@ -40,6 +40,22 @@ const builtinTokens: EdgeTokenMap = {
     networkLocation: {
       contractAddress: '0xe700691da7b9851f2f35f8b8182c69c53ccad9db'
     }
+  },
+  '779ded0c9e1022225f8e0630b35a9b54be713736': {
+    currencyCode: 'USD₮0',
+    displayName: 'USD₮0',
+    denominations: [{ name: 'USD₮0', multiplier: '1000000' }],
+    networkLocation: {
+      contractAddress: '0x779ded0c9e1022225f8e0630b35a9b54be713736'
+    }
+  },
+  '74c9f2b00581f1b11aa7ff05aa9f608b7389de67': {
+    currencyCode: 'USDC.e',
+    displayName: 'Bridged USDC (Stargate)',
+    denominations: [{ name: 'USDC.e', multiplier: '1000000' }],
+    networkLocation: {
+      contractAddress: '0x74c9f2b00581f1b11aa7ff05aa9f608b7389de67'
+    }
   }
 }