Map feature Lens and toponym editing

With the addition of Pama-Nyungan to the playable cultures it became not only immersive, but also useful to clearly identify Landmarks and Natural Wonders on the map. An addition of special lens, that would highlight Landmarks and Natural Wonders would be very helpful and improve immersion.

Also such lens could have a tool that allows players to edit names of Landmarks (but not Natural Wonders) that are fully inside this players territory. Ocean names are also uneditable in this case, but that's seems okay.