Adding a new bitbake UI interface named 'toasterui'.
'toasterui' listens for events and data coming from a
bitbake server during a run, and records it
in a data store using the Toaster object model.
Adds a helper class named BuildInfoHelper that
reconstructs the state of the bitbake server and
saves relevant data to the data store.
Code portions contributed by Calin Dragomir <calindragomir@gmail.com>.
Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>