Ambiguous BIP44 derivation for DID:key

[ehanoc]

The https://w3c-ccg.github.io/universal-wallet-interop-spec/#hd-wallets section reads without clarity is the path defined is in it's definition the Bitcoin one or the actual values in the path to be the same.

The BIP44 path definition that most of the web3 space is using is the following m/purpose'/coin_type'/account'/change/address_index ; with m/44 being the purpose for chain transaction as defined in BIP-43.

I think would be beneficial to have a dedicated path structure for identity keys and not re-use 44 as purpose , because this would mean we would have a lot of key re-use between "transaction" keys and "identity" keys.