Upgrade to textWrap

This release implements an upgrade to textWrap: in particular, a new feature beforeFindingChildCodeBlocks to be
used with perCodeBlockBasis.

This was implemented in relation to the issues raised in issue 158
and issue 228. Demonstrations are given within these threads, and are documented.

GitHub Actions

This has been implemented to create and publish latexindent.exe automatically. Hopefully
more automated actions will follow.