Added GANchain L1 Specs (#1757)

Author: aryanmishra29

constants/additionalChainRegistry/chainid-4048.js

@@ -0,0 +1,25 @@
+{
+  "name": "GANchain L1",
+  "chain": "GAN",
+  "rpc": [
+    "https://rpc.gpu.net",
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "GPUnet",
+    "symbol": "GPU",
+    "decimals": 18
+  },
+  "features": [{ "name": "EIP155" }, { "name": "EIP1559" }],
+  "infoURL": "https://gpu.net",
+  "shortName": "gan",
+  "chainId": 4048,
+  "networkId": 4048,
+  "icon": "gpu",
+  "explorers": [{
+    "name": "ganscan",
+    "url": "https://ganscan.gpu.net",
+    "icon": "gpu",
+    "standard": "EIP3091"
+  }]
+}