scan_packages: made adding package managers easier (#49079)

* made adding package managers easier

  added portage support

* moar pkg mgrs and moar info

 - added 'pkg' pkg manager (freebsd)
 - added pip
 - more apt info

* updated clgo

* Updates from feedback

Co-Authored-By: bcoca <bcoca@users.noreply.github.com>

* incorporated more feedback and added docstrings

* moar from feedback

  - made manager list dynamic and names based on class
  - better not found msg
  - made abstract metaclass again
  - test is now init exception
  - module to global
  - better dedupe comments

* more targetted errors/warnings

* added strategy, reordered to conserve priority

* rpm > apt

* move break to top

* fix trate

* piping it

* lines and meta

* refactored common functions

 - moved pip into it's own module
 - cleaned up base clases
 - ensure 'lower' match in package_facts

* missing license

* avoid facts

* update clog

* addressed feedback

* fix clog

* cleanup

* upd

* removed pip as that was removed

* renamed cpan

* added a single line since 2 lines are needed to be

readabnle instead of just 1 line, it is a huge problem otherwise

* fix internal ref

* not intended in this round

* updated as per fb

test/sanity/validate-modules/ignore.txt

@@ -721,7 +721,6 @@ lib/ansible/modules/packaging/os/opkg.py E322
 lib/ansible/modules/packaging/os/opkg.py E324
 lib/ansible/modules/packaging/os/opkg.py E326
 lib/ansible/modules/packaging/os/opkg.py E336
-lib/ansible/modules/packaging/os/package_facts.py E324
 lib/ansible/modules/packaging/os/package_facts.py E326
 lib/ansible/modules/packaging/os/pacman.py E326
 lib/ansible/modules/packaging/os/pacman.py E336