Update Sharpe, Sortino, and Calmar to use per-bar returns.

Upgrade to NumPy v2 while still supporting v1.

Fix NumPy typecheck errors.

Add --no-cache-dir to tox installation

Adds auto_adjust documentation.

Adds adjust parameter to walkforward and backtest.

Ensures that largest_loss_pct is negative, largest_win_pct is positive

Mentions Built-In Indicators in notebook.

Merge branch 'dev' of https://github.com/edtechre/pybroker into dev

Update version to 1.2.1