Add Bitcoin Cash

[lightswarm124]

Adding a new chain to the Explorer
To get a new chain added to the Explorer, you will need to submit the following:

1. JSON-RPC spec for Wallets (only if one doesn't already exist). For more information, please review the Ethereum JSON-RPC API docs.
   GitHub Link:
   https://docs.bitcoincashnode.org/doc/json-rpc/

2. Write a CASA namespace spec if not already available for this namespace.
   GitHub Link:
   bip:122 - https://github.com/bitcoin/bips/blob/master/bip-0122.mediawiki

3. namespaces:
   *known chain namespaces (e.g. eip:155 for Ethereum/EVM-based chains, solana, ...)
   bitcoincash:

4. chains:
   *known chains, where the primary key is a compound key composed of namespace + reference (e.g. ETH mainnet is eip155:1).
   Please provide labels for each chain (e.g. mainnet, testnet, devnet, ...)
   Mainnet: mainnet
   Testnet: chipnet See Additional Context below

5. RPC endpoints
   *list of common/canonical RPC endpoints for the chain(s)
   mainnet
   wss://bch.imaginary.cash:50004
   wss://explorer.bch.ninja:50004

   chipnet
   wss://chipnet.imaginary.cash:50004 Temporarily Down
   wss://chipnet.bch.ninja:50004

6. SLIP-0044 coin type:
   * slip44 coin type used in the namespace 145

References
To ensure timely processing of your request, please provide the following references:

• Source of RPC endpoints (e.g. RPC docs): [link] - https://docs.bitcoincashnode.org/doc/json-rpc/
• Source of namespace (if non-EIP155) chain information (particularly chainIds): [link] - https://github.com/ChainAgnostic/namespaces/tree/main/bip122

Additional context
Add any other context here.
BCH Test Networks - https://docs.bitcoincashnode.org/doc/test-networks/
WC2 BCH prototype implementation - https://github.com/mainnet-pat/wc2-bch-bcr

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Please note:

Registering a chain with the Explorer does not impact or improve the ability for wallets and dapps to support your chain. It is simply a way for users to discover wallets and dapps that support your chain by:

• Browsing the Chains List
• Filtering results programmatically via the Explorer API

It is still up to wallets and dapps to provide concrete support for your chain once it is listed as part of the Explorer.

• I have read and understood the above clarification

[linear]

CR-647 Add Bitcoin Cash