add common bases used on the uniswap interface

blockchains/arbitrum/assets/0xaf88d065e77c8cC2239327C5EDb3A432268e5831/info.json

@@ -0,0 +1,7 @@
+{
+  "name": "USD Coin",
+  "symbol": "USDC",
+  "type": "ERC20",
+  "decimals": 6,
+  "id": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831"
+}

blockchains/avalanchec/assets/0x49D5c2BdFfac6CE2BFdB6640F4F80f226bc10bAB/info.json

@@ -0,0 +1,8 @@
+{
+    "name": "Wrapped Ether",
+    "symbol": "WETH",
+    "decimals": 18,
+    "website": "https://weth.io/",
+    "status": "active",
+    "id": "0x49D5c2BdFfac6CE2BFdB6640F4F80f226bc10bAB"
+}

blockchains/base/assets/0x4200000000000000000000000000000000000006/info.json

@@ -0,0 +1,21 @@
+{
+    "name": "Wrapped Ether",
+    "symbol": "WETH",
+    "type": "OPTIMISM",
+    "decimals": 18,
+    "description": "wETH is wrapped ETH",
+    "website": "https://weth.io/",
+    "explorer": "https://optimistic.etherscan.io/token/0x4200000000000000000000000000000000000006",
+    "status": "active",
+    "id": "0x4200000000000000000000000000000000000006",
+    "links": [
+        {
+            "name": "coinmarketcap",
+            "url": "https://coinmarketcap.com/currencies/weth/"
+        },
+        {
+            "name": "coingecko",
+            "url": "https://coingecko.com/coins/weth/"
+        }
+    ]
+}

blockchains/optimism/assets/0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85/info.json

@@ -0,0 +1,7 @@
+{
+  "name": "USD Coin",
+  "symbol": "USDC",
+  "type": "ERC20",
+  "decimals": 6,
+  "id": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85"
+}

blockchains/polygon/assets/0x3c499c542cef5e3811e1192ce70d8cc03d5c3359/info.json

@@ -0,0 +1,7 @@
+{
+  "name": "USD Coin",
+  "symbol": "USDC",
+  "type": "ERC20",
+  "decimals": 6,
+  "id": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359"
+}