* Fix poi_worship order (same as poi_church)

* Fix poi_fish order (same as other leisure)

* Fix poi_zoo order (same as other tourism, f.ex. poi_resort)

* Fix poi order in navit_layout_car_dark_shipped.xml, same as in navit_layout_car_shipped.xml

* Brighten poly_golf_course green tint

* Split poly_sport and poly_sports_pitch and fix colors and order

* Do not show town_label_5e4 at order 5 and 6

* Make labels in navit_layout_car_dark_shipped.xml the same as navit_layout_car_shipped.xml

* Move poly_sport

* Improve poly_camp_site color

* Leave navit_layout_car_android_shipped.xml alone for now

* map:osm add caves, cliffs and dams

* Add rail_narrow_gauge to car layout

* Add:map: use descriprion if no name tag

This pull request adds the basic support for textured polygons.

    It adds a function to graphics plugins to set texture.
    It enhances itemgra configuration that allows to set a picture to polygon map elements
    Basic support for Qt5 graphics.
    Some example textures added to car layout.
    Texture files have own resource directory.