Add support for native map-gl vector tiles

[vesavlad]

A good candidate would be https://visgl.github.io/react-map-gl/docs/api-reference/source

Difference between vector tiles and raster tiles is that the vector tiles can contain allot more data and consume allot more traffic payload.

Performance between the rendering engines is incomparable because the one rendering vector tiles uses web-gl (the actual 3d engine of the computer) to render the data which is more performant in comparison to current rendering engine.

Affected classes / components:

• everything that is in the map folder of the project => this implies allot of workload and serious testing to ensure things behave the same as before)

[vesavlad]

initial integration of webgl layer for leaflet done