Add button to hide all non-relevant layers

[MichaelLangbein]

In the layer-explorer all relevant layers to the currently selected process are highlighted. However, the map still shows all layers irrespective of the active service.

Add a button that, when toggled, hides all layers that do not pertain to the currently active service.

Upon switching to another process, the new process's relevant data should be shown and all other layers hidden.

Upon manually enabling a non-relavant layer, the button should automatically toggle off.