Add token CVX (ERC20) (#14024)

* Create info.json

* Create logo.png

blockchains/ethereum/assets/0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B/info.json

@@ -0,0 +1,29 @@
+{
+    "name": "Convex Token",
+    "website": "https://www.convexfinance.com/",
+    "description": "A platform built to boost rewards for CRV stakers and liquidity providers alike, all in a simple and easy to use interface. Convex aims to simplify staking on Curve, as well as the CRV-locking system with the help of its native fee-earning token: CVX.",
+    "explorer": "https://etherscan.io/token/0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B",
+    "type": "ERC20",
+    "symbol": "CVX",
+    "decimals": 18,
+    "status": "active",
+    "id": "0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B",
+    "links": [
+        {
+            "name": "coinmarketcap",
+            "url": "https://coinmarketcap.com/currencies/convex-finance/"
+        },
+        {
+            "name": "twitter",
+            "url": "https://twitter.com/convexfinance"
+        },
+        {
+            "name": "telegram",
+            "url": "https://t.me/convexEthChat"
+        },
+        {
+            "name": "medium",
+            "url": "https://convexfinance.medium.com/"
+        }
+    ]
+}