Move to YAML config and allow split functions

1. Move to a YAML-based configuration format instead of the original
   INI-based configuration to facilitate better organization and
   readability.
2. Modify the daemon to be able to operate in several modes based
   on configuration flags. Either networking or storage functions
   can be disabled using the configuration, allowing the PVC system
   to be used only for hypervisor management if required.

debian/rules

@@ -6,6 +6,8 @@
 %:
 	dh $@
 
+override_dh_auto_clean:
+	find . -name "__pycache__" -exec rm -r {} \; || true
 
 # If you need to rebuild the Sphinx documentation
 # Add spinxdoc to the dh --with line