Show reservation details in planning firectly

Hi,

First of all I'm willing to work on this feature myself (as I've done it on our internal glpi instance)

The feature would be : Show the reservation comment and author directly on the reservation planning views instead of only showing it on hover.

For now the planning views show colored circles or rectangles and you need to hover with the mouse to get the details. This makes it unclear that the reservation has details and requires a user action for information that could be displayed directly on the planning. The displayed information would be the same (or replace?) as the hover information (which means, no change would be made on the rights needed to display that info)