Introduced D-Bus interfaces in `process_image` to interact with the
piControl driver. Added `InterfacePiControl` class with methods to reset
the driver and signal driver reset events. This improves driver
management and integration via D-Bus.
Introduced a new helper class `ResetDriverWatchdog`, a thread-based
watchdog to detect the `reset_driver` action. The implementation is
adapted from the revpipyload project and includes methods to
register/unregister callbacks and manage the watchdog lifecycle. This
addition improves monitoring capabilities for the process image.