Add support for systemd's scope/slice concept within our application launch process

Signed-off-by: Simon Busch <morphis@gravedo.de>
Implement booster for Qt5 quick applications

This should improve the startup time of Quick based applications a lot as we're preloading
important components here which should remain in memory afterwards and reduce the load
time when the application itself starts.

Signed-off-by: Simon Busch <morphis@gravedo.de>
Revert "Implement booster for Qt5 quick applications"

This reverts commit 5a54c889aff42982a60d6c35d53e58ad17759be2.
Revert "Add support for systemd's scope/slice concept within our application launch process"

This reverts commit eef31c56b231babbbee1fb2657fd7b1e434a9642.