add Bitroot Mainnet (15888) and Testnet (15885)

[messi15888]

This PR adds Bitroot Mainnet and Testnet configurations to the official chain list.

Mainnet (eip155-15888.json)

• Chain ID: 15888
• RPC: https://rpc.bitroot.co, https://mainnet-rpc.bitroot.co
• Explorer: https://explorer.bitroot.co
• Native Currency: BRT (18 decimals)

Testnet (eip155-15885.json)

• Chain ID: 15885
• RPC: https://testnet-rpc.bitroot.co
• Explorer: https://testnet-explorer.bitroot.co
• Faucet: https://faucet.bitroot.co
• Native Currency: BRT (18 decimals)

Verification

• JSON format validated with prettier
• Configuration files comply with schema requirements

Related Links

• Official Website: https://bitroot.co

[github-actions]

You successfully submitted a PR! Due to the amount of PRs coming in: we will only look at PRs that the CI is happy with. We can also not hold your hand getting the CI green - just look how others that where merged did it and RTFM. So as long as there is any CI check that reports an error - no human will look at this. You might be able to ask for some support after supporting the project - e.g. by sending funds to lists.eth. When you fixed things after a requested change - then you also need to (re-)request a review.

[messi15888]

You successfully submitted a PR! Due to the amount of PRs coming in: we will only look at PRs that the CI is happy with. We can also not hold your hand getting the CI green - just look how others that where merged did it and RTFM. So as long as there is any CI check that reports an error - no human will look at this. You might be able to ask for some support after supporting the project - e.g. by sending funds to lists.eth. When you fixed things after a requested change - then you also need to (re-)request a review.

CI is green, ready for review! Thanks for maintaining the list.