* apkindex:
* Also parse the architecture field
* symlink_noarch_package:
* Renamed to symlink_noarch_packages
* Always work on all packages (so we don't need to guess which
subpackages have been generated after a certain build)
* Get invoked when running 'pmbootstrap index'
* Use 'apk index' to generate one index, where the architecture
does not get rewritten (abuild does that by default, due to
Alpine's repos not having a 'noarch' folder and diverging from
that doesn't make things easier for us). That goes super fast,
and then we know which packages are noarch packages and can
create the symlinks.
* Made output less verbose:
* Use -q for 'apk index' when calling it directly (when it gets
called by abuild we can't control that)
* Output that the APKINDEXes get reindexed only to the 'pmbootstrap
log'.