media-sound/picard: 1.4.1 version bump

media-sound/picard: 1.4.1 version bump

Changes made:
* convert DOCS to array and add README.md
* use correct python_ phase functions instead of src_
* make explicit the passing the phase variables to setup.py
* remove doicon and domenu commands which are no longer required
* remove BROWSER setting documentation
  Picard is able to determine default browser on Gnome and Plasma systems
  Reference: https://picard.musicbrainz.org/docs/faq/#which-browser
* make chromaprint and python-discid runtime optional
  Optional runtime dependencies are:
  - chromaprint[tools]
  - python-discid

Refer to https://devmanual.gentoo.org/general-concepts/use-flags/ for
information on why these dependencies should not be listed in DEPEND
and/or RDEPEND. Picard is capable of executing correctly with and
without these dependencies installed on the system. A user can install
these dependencies at a later stage and Picard will recognise them
without a need to rebuild the media-sound/picard package.

Gentoo-bug: 609376
Package-Manager: Portage-2.3.5, Repoman-2.3.2
Closes: https://github.com/gentoo/gentoo/pull/4196