[TASK] Add chaindata to Talisman once mainnet runtime is ready

[drewstone]

Overview

Add chaindata to Talisman wallet repo: https://github.com/TalismanSociety/chaindata.

• Provide RPCs
• Provide logo
• Other metadata

[thomivy]

Just keeping my draft here for collab/sanity checks.

  {
    "id": "tanglenetwork",
    "name": "Tangle Network",
    "account": "*25519",
   // "subscanUrl": "", // to be determined
  //   "chainspecQrUrl": "-", // need to generate
 //   "latestMetadataQrUrl": "", // need to generate
    "rpcs": [
      "'wss://rpc.tangle.tools"
    ],
    "balancesConfig": {
      "substrate-native": {
  //      "coingeckoId": "tanglenetwork", // To be confirmed
        "dcentName": "TANGLE NETWORK TOKEN", // Display name
  //      "logo": "./assets/tokens/tangle.svg" // Need to get svg and add
      }
    }
  },