Cython Functions for Timing Clone Protocol

sage.structure.list_clone_timings_cy.cy_add1_immutable(bla)

sage.structure.list_clone_timings_cy.cy_add1_internal(bla)

sage.structure.list_clone_timings_cy.cy_add1_mutable(bla)

sage.structure.list_clone_timings_cy.cy_add1_with(bla)