framegraph → lights Relation

File in src/3d/framegraph	Includes file in src/3d/lights
qgsframegraph.cpp	qgsdirectionallightsettings.h
qgsframegraph.h	qgspointlightsettings.h
qgspostprocessingentity.cpp	qgsdirectionallightsettings.h
qgsshadowrenderview.cpp	qgsdirectionallightsettings.h