remove string and dictionary events, modified some property names for relaying messages, small changes to make it work with modified C# API
adding sqare tracking area in, handled visualizer side.
square tracking observe area implemented working on merge with C#
adding counter for iterate person's id list
fixed observer for device
changing width and height of the device to messuredd in meters instead of mm.
Merge branch 'dev' of https://github.com/ase-lab/SoD_Locator_SS into DEV_yuxi
use dev branch locator only