Added table creation mode, fixed some other details. Next: decide how we want to manage what we want to see, the modes, etc etc..

Solved zoom issue, now text and handlers will stay same size when zooming. Added IDs. Separated rectangles in 2 kinds: CrazyFlyZone and Table(still to be implemented)

Added QGraphicsView and QGraphicsScene. Can draw rectangles, need to find out what is wrong with refreshing

Updated crazyflie_ws folder with Angel's new stuff. Added the script setup_and_compilation.sh which sets up the system locally and compiles it, following instructions from WIKI page of the repository