Binance-connector

Changed
- Changes to `GET /api/v3/historicalTrades`: api key is not required.

Changed
- Change `User-Agent`

Added
- Add support for use of ED25519 Key to generate signatures

Changed
- Modified format of combined streams in Websocket Market Streams. Please refer to `examples/websocket/websocket_stream/combined_streams.py` for example implementation.

Removed
- Discontinued official support for Python 3.6

Removed
- Removed endpoint `POST /sapi/v1/sub-account/subAccountApi/ipRestriction/ipList`
- Removed endpoint `POST /sapi/v1/sub-account/subAccountApi/ipRestriction`

Added
- `POST /sapi/v2/sub-account/subAccountApi/ipRestriction`
- `GET /sapi/v1/managed-subaccount/deposit/address`

Changed
- Redesign of Websocket part. Please consult `README.md` for details on its new usage.

Added
- Add Websocket API