Added python version of my_first_test
Added damage updates using python solver.
Other updates:
- Started to split MaterialCohesiveDamage into MaterialCohesiveDamageIntrinsic (for implicit - corresponds to former version of MaterialCohesiveDamage) and MaterialCohesiveDamageExtrinsinc (for explicit - does not work for the moment)
- Modification when creating lambda : one lambda for each node of each czm element