Tested on Qemu amd64. Everything builds and runs correctly.

[skip ci]: ollieparanoid made sure that this builds for x86_64, armhf
           and aarch64.

When we bump the version in pmaports.cfg and the min. required pmaports
version in the pmbootstrap code, then forks of pmaports.git must be
rebased on pmaports.git master. Otherwise "pmbootstrap init" fails, and
because we have it set to quiet (so the output does not distract from
the interesting output if everything goes fine), there was no meaningful
error message yet.

Wrap the "pmbootstrap init" call and display a helpful message that
tells the user to rebase.

Continue even if some kpartx commands fail. This is necessary for the
htc vision and perhaps other devices.

Upgrade unixbench to git master instead of the old git tag I've used.
New version has way better way to check core count on ARM machines.

Add initfs hook to enable it, and set the deviceinfo variable.

Integrate Gemini PDA support into master from old branch:
https://github.com/postmarketOS/pmbootstrap/commits/device-planet-geminipda

Most of hybris-related changes (besides KWin) was merged, so it is just
device and kernel aports now.

The state of hardware support is unchanged from:
https://wiki.postmarketos.org/wiki/Planet_Computers_Gemini_PDA_(planet-geminipda)

Without hybris, it can boot to graphics with X11 fbdev driver, the
included config enables correct rotation (as it has portrait display,
but usable only in landscape).

For running it with hybris, which can allow for 3D acceleration, we need
a way to package and provide large LXC image for running Halium Android
container. Lately Adam Boardman from Gemini PDA community also got voice
calls working in Debian install with a mix of SailfishOS middleware and
Ubuntu Touch applications, which could be probably adapted for
postmarketOS if needed.

Right now, this doesn't build anymore, it is failing with:

/home/pmos/build/src/itinerary-c47772e49de6662acd7769d5c8cef94379ea7bcf/src/app/reservationmanager.h:21:10: fatal error: KItinerary/ExtractorRepository: No such file or directory
 #include <KItinerary/ExtractorRepository>
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I've tried to update it to the latest commit, but then it fails with
another error. Turns out, this package depends on kitinerary (with a
k!), and whenever we update that, we also need to update this package
to the latest commit. Unfortunatelly, itinerary does not have tagged
versions yet.

So I would like to remove it for now, it does not seem like anybody is
using it at this point, and so it's just additional maintenance effort
for nothing. We could package it again, when it has tagged versions and
is therefore easy to update together with kitinerary.

Remove kitinerary too, because it isn't used by anything else.

Add firmware-rtl8723bt package and Pine wifi and bluetooth firmware
subpackage.

[skip ci]: ollieparanoid will build this MR manually before merging, it
will probably not finish CI within one hour.

The device boots, USB networking works, display works (touch doesn't
work). All other information is in the Wiki page.

The Pine boots, Weston shows on a HDMI display.

[skip ci]: doesn't finish in time; ollieparanoid tested that this
compiles for armhf, aarch64, armv7

Adds an aport for unixbench and a wrapper so it can be started with
ubench without requiring write permissions in /usr. To launch the
benchmark on a phone and have it finish in a reasonable amount of time:

$ ubench dhry whets
Output on an i7-7700HQ in the pmbootstrap chroot:
Dhrystone 2 using register variables      146273178.2 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                    44390.3 MWIPS (9.7 s, 7 samples)

System Benchmarks Partial Index              BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0  146273178.2  12534.1
Double-Precision Whetstone                       55.0      44390.3   8071.0
                                                                   ========
System Benchmarks Index Score (Partial Only)                        10057.9

This is a neat way to get relative performance between devices and
testing performance for upstream/downstream kernels.

Change arch line to same as linux-postmarketos-stable (so the current
build scripts won't attempt to build linux-postmarketos-stable for
armv7).

Add karchive-dev and libxml2-dev to depends_dev

Add python2 to makedepends, so it builds in strict mode for armv7.
Otherwise it would fail with:

checking whether /usr/bin/python2 version >= 2.6... configure: error: too old

This MR updates the app to the latest commit (currently from 2 days
ago). It also updates plasma-angelfish, but I changed the $pkgrel to
follow the format of the other Git packages.

This also re-enables plasma-angelfish and vvave in the default Plasma
Mobile installation, as they were previously disabled due to
qt5-qtwebengine (which they depend on) requiring a soname bump
upstream.

Add patch to remove inline from some functions to make hildon-desktop
compile on armv7.

Fix warnings showed by abuild when building this package:
* Add doc subpackage
* Add options=!check
* Use pkgname in source URL

Make our distcc+ccache+cross compiling setup work with armv7.

Follow-up to !21, where only the kernel was added, but not the device
package.

This adds the new deviceinfo parameters for specifying binary:offset for the
embed_firmware method, and removes the old method.

The new version changed the way firmware is written to SD cards, see:
https://postmarketos.org/deviceinfo

Add main/qt5-qtspeech, required dependency for kde/kpimtextedit. Disable
check in kde/kimap, as it fails at least with QEMU aarch64.

Change the source url for Sink and Kube to the KDE Download mirror
rather than their GitHub organization (they required rebuilding anyway
due to the applications upgrade).

The device boots, USB networking is available and the display does also
work, even though the default display brightness seems to be zero. More
information can be found in the wiki.

Thanks to PureTryOut for the patch

[skip ci]: the CI script will fail with the "too many packages have
changed" sanity check. ollieparanod has verified that everything builds
before merging.