sysutils/dvdisaster: Update to 0.79.10 and flavorize

- Change to fork and update to 0.79.10
- Drop NLS option, it just covers a few languages and is inconsistent
- Add nox11 flavor
- Partially backport upstream changeset 25:a315fe55901a (mercurial) to
  allow a clean build of nox11 flavor
- Drop GCC requirement
- Rework port to follow Porters Handbook more closely and for better readability
- Enable verbose build

PR:		270718
Approved by:	portmgr (maintainer timeout, 2+ weeks)