[TASK] ADWD-1518 Geopicker: Zoom to coordinates if present

Also, allow multiple instances of geopicker for multiple Orte in Kloster editor.

Rewrote geopicker into a jQuery extension, changed file structure once again.
Merge pull request #195 from subugoe/geopickerzoom

[TASK] ADWD-1518 Geopicker: Zoom to coordinates if present