net-mgmt/pnp: update to 0.6.7
- update sources to 0.6.7 -- the tip of 0.6-series;
- reworked patches and grouped them by-commit rather than by-file;
- excluded removal of .orig files -- all files aren't installed anymore;
- changed maintainer (my) e-mail.
Approved by: garga (mentor)
PR: ports/151118