Add UltronSmartchain JSON (ethereum-lists#4889)

* add ultronchain

* update logo

* change image to png

* doh

---------

Co-authored-by: mo-bay <[email protected]>
Co-authored-by: ligi <[email protected]>

Author: 3 people

_data/chains/eip155-662.json

@@ -0,0 +1,23 @@
+{
+  "name": "UltronSmartchain",
+  "chain": "UltronSmartchain",
+  "rpc": ["https://rpc.ultronsmartchain.io"],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "ulc",
+    "symbol": "ULC",
+    "decimals": 18
+  },
+  "infoURL": "https://ultronsmartchain.io",
+  "shortName": "ultronsmartchain",
+  "chainId": 662,
+  "networkId": 662,
+  "icon": "ultronsmartchain",
+  "explorers": [
+    {
+      "name": "ultronsmartchain explorer",
+      "url": "https://scan.ultronsmartchain.io",
+      "standard": "EIP3091"
+    }
+  ]
+}

_data/icons/ultronsmartchain.json

@@ -0,0 +1,8 @@
+[
+  {
+    "url": "ipfs://QmTns2FXAqDCq1QJsocUBGjhxsgWYK7pFfD4UrRZ9JBsF1",
+    "width": 50,
+    "height": 50,
+    "format": "png"
+  }
+]