Make sure highligh layers don't disable time selector
Make identify request for each layer

This is needed because each layer could have different timeInstant
parameter. The overall behaviour of the tooltip component
does not change.

Now, timeenabled layers are supported, taking into account current
state of timeslider (enabled/disabled, active/inactive on specific
year or not).

This asssures that only the desired tooltips are shown.
Make sure all features from all layers are drawn
Taking into account new behaviour for timeslider component
fix build
Add images for new topics
Fix after rebase
Taking comments into account
Merge pull request #803 from geoadmin/dev_timedep_tooltip

Timedependant tooltip