Autotrader

Fix

- **indicators.py**: fixed handling of different data types in find_swings indicator

Feat

- reimplemented scan mode
- integrated Telegram for trade notifications (12)
- **tg.py**: telegram bot can write chat id to keys.yaml
- **telegram.py**: telegram bot returns chat id for initialisation
- added initialisation method

Fix

- fixed circular import errors
- **tg.py**: order side determination logic

Refactor

- **tg.py**: renamed telegram.py to tg.py to avoid name conflict
- **notifier.py**: added abstract communications class Notifier

Refactor

- **Broker**: all broker class inherit from AbstractBroker
- **brokers.broker.py**: renamed Broker to AbstractBroker
- **broker.py**: implemented initial broker abstraction

Refactor

- **ccxt.broker.py**: added network exception handling with single retries

Feat

- **autoplot.py**: portfolio plot includes equity and nav hovertool

Fix

- email_manager import (46)
- datetime.timezone import
- CCXT get_trades uses kwargs in fetchMyTrades call