Corrected a typo in the `timeout` parameter name in `method_await_reset`
and removed an unused thread instance `th_sleep` from `dbus_helper.py`.
These changes improve code clarity and eliminate redundant components.
Introduced `BusType` enum to differentiate between session and system
bus usage in D-Bus calls. Updated `simple_call` and `await_signal`
functions to include a `bus_type` parameter, improving flexibility.
Adjusted `cli_picontrol` to leverage the new `BusType` parameter for
D-Bus interactions.
Introduced a `--use-session-bus` flag to optionally use the D-Bus
session bus instead of the system bus. This allows better flexibility
for local testing and development scenarios without requiring
system-level changes. Updated related classes and functions to respect
the new flag.
Introduce the await_signal function to monitor D-Bus signals with a
timeout. This uses GLib's MainLoop and threading to wait for signals
efficiently while respecting a specified timeout duration.
This introduces `simple_call`, a utility function to interact with D-Bus
interfaces within the RevPi system. It facilitates method invocation on
specific interfaces and paths, improving modularity and code reuse in
middleware operations.
