raster → providers Relation

File in src/core/raster	Includes file in src/core/providers
qgsrasterchecker.cpp	qgsproviderregistry.h
qgsrasterdataprovider.cpp	qgsproviderregistry.h
qgsrasterdataprovider.h	qgsdataprovider.h
qgsrasterfilewriter.cpp	qgsproviderregistry.h
qgsrasterlayer.cpp	qgsproviderregistry.h