Instrumented code for counting:
* added counters to addition in cohomology and ChainWrapper
* rips-pairwise-cohomology counts the maximum elements stored in the cycles
* added alphashapes3d-cohomology
* moved progress_display from DynamicPersistence to StaticPersistence
add_subdirectory (alphashapes)
#add_subdirectory (ar-vineyard)
add_subdirectory (cech-complex)
add_subdirectory (consistency)
add_subdirectory (cohomology)
add_subdirectory (fitness)
#add_subdirectory (grid)
add_subdirectory (triangle)
add_subdirectory (poincare)
add_subdirectory (rips)