Add polars_ta python package

[ddotta]

Link to suggestion

https://github.com/wukan1986/polars_ta

Targeted section

Python

Describe your suggestion

• polars_ta - Python package that provides technical indicator operators rewritten in Polars by @wukan1986.

Checklist

• checked if your suggestion is not already listed in Awesome Polars list.
• checked if it can fit in an existed section or suggest a new section and explain why your item does not fit into one and what would be the interest of your new section.
• checked when it's a repository if it's maintained (archived repository will be rejected).