New providers added

[chatelao]

OpenFireMap, OpenInfraMap

[jieter]

@chatelao thanks for your PR. Can you pllease have a look at why the tests fail, and fix those issues?

[chatelao]

Fix applied (formating error)

[jieter]

I think this one has to go into options?

[chatelao]

I will have a look. Something seamed wierd with the zoom levela.

[jieter]

The top level object should only have keys url, options and variants, so the maxZoom should not be in L.TileLayer.Provider.providers.OpenPtMap but in L.TileLayer.Provider.providers.OpenPtMap.options.

[chatelao]

You are so nice and helpful. I will commit after fixing. Maybe you tests support checking a json schema? I could try to create one.

[chatelao]

Next try :-)

[jieter]

Your commit 4a3a8d2 was fine (Tests passed), please remove the last commit (28aa79f).

[chatelao]

Thank you for your pation with a newbie.

[jieter]

I added a bit more strictness to the tests, which can be seen here.

This looks good to me, I'm merging.

For next time, it's helpful to include all layer's you are adding with the PR to the description of the PR and if possible include links to their usage terms.

[jieter]

@chatelao if I may suggest some improvements:

• OpenStreetMap.CH could use bounds, as it is really only defined for Switzerland.
• OpenInfraMap.* are overlays, so it would be nice if the preview would render them on a background layer. This would mean adding a regexp to isOverlay
• Same is true for OpenRailwayMap, OpenFireMap and SafeCast.

[chatelao]

Okay, I will try this. Didn't see this part of the code (yet).