Have the GUI present information concerning the displayed/used data

[EricBoix]

When using UD-Viz, one has no simple way (through the GUI itself) to retrieve information (sources/characteristics/description) concerning the displayed data. For example when a 3DTiles is displayed we have no mean to know where it comes from: which computational process produced it, what is the exact geographical scope, at which historical date corresponds what is displayed...

Assuming that each data set has a some description field (metadata?) have UD-Viz display that textual information.

Note: the current technical way of doing this, consists in trapping the networked access to the data with the browser debugging tool, taking the URL, using wget on that URL and inspect the retrieved data...