UE::Geometry::RegisterPersistentMeshSelectionManager

The functions below are helper functions that simplify usage of a [UDEPRECATED_PersistentMeshSelectionManager](API\Plugins\ModelingComponents\Selection\UDEPRECATED_Pers-) that is registered as a ContextStoreObject in an InteractiveToolsContext If one does not already exist, create a new instance of [UDEPRECATED_PersistentMeshSelectionManager](API\Plugins\ModelingComponents\Selection\UDEPRECATED_Pers-) and add it to the ToolsContext's ContextObjectStore