gui POC from py_exercises added
renamed gui file to the production intended name
adding project to version control
- added delete window callback
- added <Escape> key callback
- added user confirmation popup

refactored slighttly the code

-TODO
define exanged DATA structures
implement message queues
implement hook plugins manager
hell, complete poc is done
all adge cases should be covered now

TODO
check todos
and re-analyse the code

somehow dont like it so much
adding guiManager code that works with manager.py
Merge branch 'local_rep_master'