devel/libthai: Update to 0.1.30
- Drop DOCS, can't build/generate due to old version of Doxygen in tree see PR 279330
- Drop static archive, nothing in tree uses it
- Drop dependency of gmake
- Enable "make test"
- Adjust Makefile to more closely follow Porters Handbook
Changelog: https://github.com/tlwg/libthai/releases/tag/v0.1.30
PR: 292145
Reviewed by: otis (maintainer)