add a project named HRAGUI (formerly named PyGUI) used to store all GUI
code;
as a backend PyQt library is used; the project consists of the following
packages:

hra_gui.qt.actions
- includes code associated with some action's functionality for example:
  leaving application or clearing settings

hra_gui.qt.activities
- code concerning activities functionality included in a GUI
application, 
  e.g. dock widget to access previously saved activities

hra_gui.qt.custom_widget
- to store custom widgets of common usability

hra_gui.qt.docks
- to store some docks widget of common usability

hra_gui.qt.menu
- to store code for application menus

hra_gui.qt.models
- to store code for models which uses Qt functionality

hra_gui.qt.plots
- to store functionality concerning tachogram and poincare plots

hra_gui.qt.utils
- to store some utils code

hra_gui.qt.widgets
- to store simple widgets as subclasses of QT widgets with added
functionality

hra_gui.qt.wizards
- to store code concerning wizards