* feat(connector)_: impl `eth_requestAccounts` for browser plugin
* feat(connector)_: add impl for `wallet_switchEthereumChain` and `eth_chainId`
* feat(connector)_: add impl for `eth_sendTransaction`
* feat(connector)_: add a signal and an endpoint for wallet ui side
* chore_: refactor connector tests
* feat(connector)_: impl `eth_requestAccounts` with signal
* chore(connector)_: Add test, covering full transaction flow
And polish impl & test for connector endpoints
* fix(connector)_: temporary allow all origins for ws connection
* chore_: review fixes
* fix(connector)_: make user select chain id for dApp
* fix(connector)_: add requestID and fine tune endpoints
* chore(connector)_: naming fixes and tests improvments
Mikhail Rogachev