[qtmultimedia] Remove workaround for resolved gstreamer bug.

Reloading the capture pipeline before recording is unnecessary and
introduces a big pause.  Don't do it.
[packaging] Add qt5-qtmultimedia-plugin-audio-pulseaudio package.
[qtmultimedia] Enable gstphotography interfaces in the config test passes.
Merge pull request #5 from adenexter/camera

Enable flash, focus etc configuration and package pulseaudio plugin.
[qtmultimedia] Set camerabin focus modes.
[qtmultimedia] Pass on rotation information supplied in encoder settings.
[qtmultimedia] Add support for orientation tags.
Merge pull request #6 from adenexter/camera

Implement setting focus modes, and rotation support.
[qtmultimedia] Apply presets supplied in audio and video settings.
Merge pull request #7 from adenexter/camera

[qtmultimedia] Apply presets supplied in audio and video settings.
[qtmultimedia] Don't prevent media playback when in image capture mode.

Only acquire resources actually required by the backend in any given
mode.
Merge pull request #8 from adenexter/camera

[qtmultimedia] Don't prevent media playback when in image capture mode.
[qtmultimedia] Update policy if camera resources are made available.
[qtmultimedia] Don't recreate the camera source unnecessarily.

Destroying and recreating the source discards all the photography
settings and is just generally costly.
Merge pull request #9 from adenexter/camera

[qtmultimedia] Update policy if camera resources are made available.
[qtmultimedia] Don't reset volume on initialization.

There seems to be a lot of inconsistency here but this will change the
global volume not the stream volume with pulse sinks.  We don't want
that.
Merge pull request #10 from adenexter/camera

[qtmultimedia] Don't reset volume on initialization.
[qtmultimedia] Add a control for the querying camera sensor orientation.
Merge pull request #11 from adenexter/camera

[qtmultimedia] Add a control for the querying camera sensor orientation.
[qtmultimedia] Allow plugins to override the VideoOutput implementation.