science/chemtool-devel: Fix build on FreeBSD 13.1R and 14
- Same fix as 4bfc3a9 for science/chemtool.
- While we are at it, define LICENSE. The license is not shipped, but from the README it is clearly the authors intent to have the same license as for science/chemtool.
while I'm here:
- cleanup Makefile
- remove unnecessary patch and reinplace cmd
- add EXAMPLES option
- add missing LIB_DEPENDS and USE_GNOME deps (Q/A check)
- adopt port
PR: 265614