This reverts commit 50706e3e.

If [argcomplete](https://argcomplete.readthedocs.io/en/latest/) is installed,
bash tab completion will be enabled for pmbootstrap's arguments.

If argcomplete is not installed, pmbootstrap continues to work as before.

[skip ci]

recovery zip: support twrp.fstab filename in addition to recovery.fstab (fix for compatibility with TWRP on sony-yuga)

Fixes #1625.

Rebuild libphonenumber, because a soname it depends upon does not exist
anymore: so:libboost_system-mt.so.1.66.0

There are devices where charging-sdl/directfb fails (osk-sdl#77).

It's nicer to give an error message than display "Loading..." forever.

Fixes #1639

Overview:
In order to execute foreign arch binaries on the host system, we are
using the Linux kernel's binfmt_misc feature in combination with
static builds of QEMU. Before this patch, the statically compiled
QEMU binaries were taken from Debian (mostly because I did not realize
that Alpine ships them as well). Now we can use the ones from the aport.

Benefits:
This allows us to easily update and patch the QEMU executables, we
don't need to be in sync with Debian's versions anymore.

Alpine's package is more modular, so we can save some download,
install, zap time, as well as disk space: setting up an armhf chroot
with pmbootstrap took ~102 MB before, now it's ~18 MB.

Detailed changes:
* Remove `cross/qemu-user-static-repack` aport
* Add `data/qemu-user-binfmt.txt` with the binfmt_misc flags for ELF
  binaries of various arches (extracted from Debian's packaging)
* When parsing that file, don't write verbose messages to
  `pmbootstrap log` anymore, only to the verbose log (can be enabled
  with `pmbootstrap -v`)
* Rename `pmb.parse.arch.alpine_to_debian()` to ...`alpine_to_qemu()`
* Rename `arch_debian` to `arch_qemu`

This commit adds a test case, which makes sure that the KDE framework
and plasma framework version are always the same.

Additional changes:
* APKBUILD parser parses the URL now (that's the best way I found to
  categorize the KDE aports in frameworks and other)
* Changed single quotes to double quotes in KDE APKBUILDs, so the
  parser doesn't include the single quotes in the parsed result
* Added the test case to the gitlab CI config

We are running the Spice client installed on the host system. It doesn't
need to be run with env variables that point to chroot libraries.