[NEW PORT] finance/py-backtrader: Python Backtesting library for trading strategies

A feature-rich Python framework for backtesting and trading.

backtrader allows you to focus on writing reusable trading strategies,
indicators and analyzers instead of having to spend time building
infrastructure.

WWW: https://www.backtrader.com/
WWW: https://github.com/backtrader/backtrader

PR: 238572
Submitted by: <m.tsatsenko gmail com>