Add Open Street Map repository

[AuSpotter]

Is your feature request related to a problem? Please describe

Some common symbology (not represented on other repositories) is missing in QGIS and the Resource Sharing plugin.

Describe the solution you'd like

The Open Street Map repository has the icons which would be very useful. https://github.com/openstreetmap/map-icons

Could this be added?

[Guts]

To add a repository, it must comply with a specific structure as described into the documentation: https://qgis-contribution.github.io/QGIS-ResourceSharing/authoring/creating-repository.html

Sadly, the mentioned repository is not suitable.