efl_ui_collection: honor desktop vs. touch setting of elm config
with this commit we do desktop-like selection on desktop systems:
- Multiselect with CTRL pressed
- Normal single selection if no CTRL is pressed
on touch devices this is simple on/off selection:
- click to add it to multiselect
- click to remote it from mutliselect
ref T8057
Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Cedric BAIL <cedric.bail@free.fr>
Differential Revision: https://phab.enlightenment.org/D9664