Add Zilliqa EVM chain (32769)

[JamesHinshelwood]

Add New Chain 32769

Checklist

• The branch is named as add-chain-32769.
• I haven't modified the chains.json file directly.
• In sourcify-chains.ts file
  • I've set supported: true.
  • I've set monitored: false.
  • I haven't added an rpc field but the one in chains.json is used (if not, please explain why).
• I've added a test in chain-tests.js file.
• test-new-chain test in Circle CI is passing.

_{View in Huly HI-655}