Add toaster sample consumer/provider modules to initial configuration.

Add toaster sample consumer/provider modules to initial configuration.

Toaster modules are now part of configuration subsystem, but were not started by default so far.
Toaster consumer/provider are now started by default and behave just like before.

In addition, now you can access toaster modules via netconf endpoint started by the controller (port 8383).
Toasts-made count for toaster-consumer is now reported as operational data and can be accessed using get rpc.

Change-Id: Ia649ed4f0255de22aae35d4362e51ba1bc53936e
Signed-off-by: Maros Marsalek <mmarsale@cisco.com>