testing/notcurses: new aport
This PR obsoletes !9828 (closed) (closed).
This packages the notcurses project into five Alpine APKs:
notcurses-1.5.3-r0.apk notcurses-dbg-1.5.3-r0.apk notcurses-dev-1.5.3-r0.apk notcurses-doc-1.5.3-r0.apk notcurses-static-1.5.3-r0.apk
Notcurses is an advanced library for TUIs and character graphics. It is necessary for another project I'm hoping to add to Alpine, and interesting in and of itself.
I do not build nor run unit tests yet, because of a missing buildtime dependency on Doctest. I intend to package doctest for Alpine, and if it is admitted, I'll be able to enable these unit tests. For now, I have options="!check".
Per request of @mps, I have refreshed and squashed everything.