vectortile → providers Relation

File in src/core/vectortile	Includes file in src/core/providers
qgsmapboxglstyleconverter.cpp	qgsproviderregistry.h
qgsvectortiledataitems.cpp	qgsdataprovider.h
qgsvectortilelayer.cpp	arcgis / qgsarcgisrestutils.h
qgsvectortilematrixset.cpp	arcgis / qgsarcgisrestutils.h
qgsvectortileprovidermetadata.h	qgsprovidermetadata.h
qgsvtpktiles.cpp	arcgis / qgsarcgisrestutils.h