[PWGCF] initial task commit (#18174)

Co-authored-by: ALICE Action Bot <alibuild@cern.ch>

Author: EmilGorm

PWGCF/GenericFramework/Tasks/CMakeLists.txt

@@ -28,3 +28,8 @@ o2physics_add_dpl_workflow(flow-gfw-nonflow
                     SOURCES flowGfwNonflow.cxx
                     PUBLIC_LINK_LIBRARIES O2::Framework O2Physics::AnalysisCore O2Physics::GFWCore
                     COMPONENT_NAME Analysis)
+
+o2physics_add_dpl_workflow(energy-flow-gfw
+                    SOURCES energyFlowGfw.cxx
+                    PUBLIC_LINK_LIBRARIES O2::Framework O2Physics::AnalysisCore O2Physics::GFWCore
+                    COMPONENT_NAME Analysis)