ColumnarTestFixtures → ColumnarCore Relation

File in PhysicsAnalysis/Columnar/ColumnarTestFixtures	Includes file in PhysicsAnalysis/Columnar/ColumnarCore
Root / ColumnarMemoryTest.cxx	ColumnarCore / ColumnarDef.h
Root / ColumnarPhysliteTest.cxx	ColumnarCore / ColumnarTool.h