Liualgotrader

1. Full list of changes in https://liualgotrader.readthedocs.io/en/latest/What's%20New.html ,
2. Rearchitecting due to changes in both Alpaca and Polygon APIs, reducing dependencies and making it easier to migrate or adopt new brokers & data-providers,
3. Adding full backtesting support.

* Adding notebook for design, architecture, planning, and general discussion,
* Added an LSTM sample using PyTorch

1. Add basic portfolio management (WIP),
2. Improve documentation

Calculate a strategy p-value (notebook)

1. Added new DB Tables to track P&L and r units per symbol per trade,
2. Add miner to re-calc performance for past trading sessions,
3. Improved tear-sheet notebook,
4. bug fixes

1. add calculations of anchored-vwap to `fincalcs.vwap` module,
2. add analytics notebook, w/ interactive candlestick w/ volume diagram, showing anchored vwap(s).