internal/manager library

1. planner package
2. documentation
3. internal/manager.dart

planner package

1. Libraries
2. calendar
3. internal/all_day_band
4. internal/all_day_event
5. internal/context_menu
6. internal/controller
7. internal/date_label
8. internal/date_row
9. internal/event
10. internal/events_painter
11. internal/grid
12. internal/hour_column
13. internal/hour_label
14. internal/line
15. internal/manager
16. internal/positioned_tap_detector_2
17. internal/scroll_detector
18. planner
19. planner_builders
20. planner_class
21. planner_config
22. planner_controller
23. planner_entry
24. planner_time