A better vector rendering engine

[NicoRio42]

The current vector rendering engine is hacky:

• It only handles OSM data from https://www.openstreetmap.org/export (logic is hard coded)
• It doesn't print colors in the right order

The vector rendering engine should be abstract enough to handle any shapefiles or vector files (via configuration). The rendering should be done with one layer for each colors, and then merge all the layers in the right order (respecting color order from ISOM).