[Ledger] - Implement eth-ledger-bridge-keyring library MMM

[angelcheung22]

Info

There is a ledger keyring library @metamask/eth-ledger-bridge-keyring, it is currently being implemented in MetaMask Extension

MM team wanna us to extend this library to enable the integration of ledger keyring in mobile

In result, we have to replace the existing ledger-keyring library in mobile from @consensys/ledgerhq-metamask-keyring to @metamask/eth-ledger-bridge-keyring

Tasks:

1. decouple PR in @metamask/eth-ledger-bridge-keyring into [Stanley]

• A PR to existing software architecture to enable multiple options for connection bridge
• A PR to implement the mobile connection bridge into the updated software architecture

Replacing original zenhub ticket https://app.zenhub.com/workspaces/cet-metamask-hardware-wallets-6566ee6aedc46007d5a260bb/issues/zh/106

[angelcheung22]

ticket merged with 332