Karsten Fyhn

This PR adds a Github Actions workflow for testing the pandas-ta package, by running its test suite. Currently, there are tests that are failing in the main branch. These are...

**Which version are you running? The lastest version is on Github. Pip is for major releases.** 0.3.14b0 **Do you have _TA Lib_ also installed in your environment?** Yes **Is your...