aperture: Handle rotations and conversions in individual pipelines

So we can use native rotation support in gtk4paintablesink and meta-data support for images and videos. Unfortunately this does not work yet for the later - to be fixed - however most affected devices are too slow to handle the rotation during recording anyway.

We can do so by setting individual "filters" for the different pipelines.

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Related: #102

Includes: !241 (merged)

Depends on: https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1590