Upgraded to node 20x and typesciprt

Added typescipt support to repo and intial test and coverage.

Still need to write test coverage for main funciton.

Version number now aligned with guidelines v3.0.0 instead of no v prefiex

2.0.0

Breaking changes to actions runner to run on node 16 and use the new set-output functions in @actions/core@1.10.0

1.2.0

Fixes #6, Fixes #4

1.0.1

Updated: docs to reflect new release

1.0.0

Initial commit