Moved periodicity tracker to its own class and updated BagOnPersonProcessor accordingly
Updated BagOnPersonProcessor: it runs now, almost sort of works. Still unstable.
Restructured blob message passing
Changed BlobDescriptor polymorphism layout and added diagnostic blob node
Fixed bug in ShowBlobs, it works now
Added event_descriptor for two people meeting, etc. and minor bug fixes
Restructured launch files and added interaction tracking for single and two persons
Updated version number to 1.3.0