New package: waterfox-6.6.8

[gc-user]

Testing the changes

• I tested the changes in this PR: briefly

Local build testing

• I built this PR locally for my native architecture, (x86_64)

Notes:

This template has been modeled after the one for firefox and vivaldi - but mostly after vivaldi as it does just repackage a binary package, not build from source like firefox.

I'm aware that this PR might get "auto-"closed due to the stance of multible forks of the same browser - or something along that line. But at least people can take this template from the closed PR and improve on it.

I personally see no value in installing any firefox-based browser, as portable "installations" of them in the home directory semi-auto-update from the "about" section - not sure if they are able to do so if they are installed in /opt.
Either way, repackaging for every update seem like not worth doing in that case.
I did this just to see if I can get it done, well, at least the repackaging route.

[classabbyamp]

1. we don't like having binary repackages of packages where the source is available
2. vivaldi was kind of grandfathered in, it was a restricted package that we got permission to redistribute
3. as you pointed out, the browser forks rule
4. new packages should not start as orphaned. if you aren't willing to maintain something you contributed, why would we want it?
5. don't vendor desktop files, upstream should ship them