Summary:
This commit contains the basic implementation of Live Edit mode.
With this commit Live Edit toggling is added to Menu, Tools and Ctrl-M hot-key.
Activating of Live Edit mode disables the EDC-Editor and allows user to add new parts by selecting corresponding part type in the menu that appears on right click on the EDJ-Viewer area.
Reviewers: Hermet
Projects: #enventor
Differential Revision: https://phab.enlightenment.org/D1276
previous menu_open_depth() is invalid bacause the menu would have close animation.
so right after closing the menu, the menu depth was invalid.
now get the menu depth and set focus on the editor after closing animation is finished.