media-sound/denemo: re-add package

media-sound/denemo: re-add package

* remove optional usage of guile-1, package now only supports guile-2
* fix problem with portaudio if use flag is not set
see https://bugs.gentoo.org/515888#c23
and https://savannah.gnu.org/bugs/?52741 with
https://savannah.gnu.org/bugs/?53804
* add REQUIRED_USE dependency for evince on gtk+:3

Suggested-by: Nikita Zlobin <nick87720z@gmail.com>
Closes: https://bugs.gentoo.org/667164
Package-Manager: Portage-2.3.49, Repoman-2.3.10
Signed-off-by: Bernd Waibel <waebbl@gmail.com>
Signed-off-by: Michał Górny <mgorny@gentoo.org>
Closes: https://github.com/gentoo/gentoo/pull/9908