[EXPLORER-264] Add a Calendar to Explorer - JIRA Ametys

Progress

1.	Creating a calendar : Workflow name should be sort	Closed	Unassigned
2.	Calendars colors: choose better default colors	Closed	Unassigned
3.	Calendar : when creating a new calendar, the node should not go in renamme mode	Closed	Unassigned
4.	Calendar : When creating or editing an event, the focus should be set to the first field of the dialog box	Closed	Unassigned
5.	Calendar The 2 dialog boxes should have an hourglass when terminating	Closed	Unassigned
6.	Calendar Editing a calendar should not allow to change the life cycle	Closed	Unassigned
7.	Calendar Changing an event workflow state should update the icon	Closed	Unassigned
8.	Calendar The selected day should be visible on the month view	Closed	Unassigned
9.	Calendar Do icons	Closed	Unassigned
10.	Calendar Little graphical issue on workflow menus	Closed	Unassigned
11.	Calendar Week and day view have a 1 pixel offset per day	Closed	Unassigned
12.	Calendar The dnd error message is not adapted to all circumstances	Closed	Unassigned
13.	Calendar Creating an event should display the calendar description	Closed	Unassigned
14.	Calendar Create an event pb with the tooltip when selecting the workflow	Closed	Unassigned
15.	Calendar Edit calendar, the color name is wrong at first load	Closed	Unassigned
16.	Creating an event should auto select it	Closed	Unassigned
17.	Calendar Changing start date dot not operate on all views	Closed	Unassigned
18.	Calendar On month view, single click should setStartDate	Closed	Unassigned