TODO

Fonctionnality:
- Pagination of document items                                          [ DONE ]
- Add page break                                                        [ DONE ]
- Arrow item                                                            [ DONE ]
- Graph item
- Toolbox                                                               [ DONE ]
- Animations                                                            [ DONE ]
- Combobox                                                              [ DONE ]
- Popup                                                                 [ DONE ]
- C++ binding                                                           [ DONE ]
- Write a valadoc docket to convert doc to C++ doc                      [ DONE ]
- Add style                                                             [ DONE ]
- Save under pdf                                                        [ DONE ]
- Create a graphical editor of canvas

Bugs:
- ItemResizable rotation
- Incorrect position calculation on move pointer                        [ DONE ]
- When icon is smaller than label in button the icon is not aligned     [ DONE ]
- Toggle button must be derive from Button
- Fix transform on document                                             [ DONE ]
- Fix resize in document                                                [ DONE ]
- Fix document footer draw                                              [ DONE ]
- Bad clipping with italic text
- Fix canvas editor open dialog
- Add binding shortcut in canvas editor