.aup3 isn't a Tenacity project file, it's just that Tenacity uses the
Audacity project file format.
Signed-off-by: Sol Fisher Romanoff <sol@solfisher.com>
Reference-to: https://github.com/tenacityteam/tenacity/pull/638
Thanks to Pokechu22 for tracking down the relevant files.
Also added Audacity_Logo_large.svg as the 'master'.
Noted naming anomaly in the 48x48 px XPM files having an
additional "_xpm" in the name.