mesh → providers Relation

File in src/core/mesh	Includes file in src/core/providers
qgsmeshcalculator.h	qgsprovidermetadata.h
qgsmeshdataprovider.h	qgsdataprovider.h
qgsmeshdataprovider.h	qgsprovidermetadata.h
qgsmeshlayer.cpp	qgsproviderregistry.h