Contact mechanics model
```````````````````````

In `compression.py` it is shown how to couple the Solid Mechanics Model with the Contact Mechanics Model. The example 
simulate the contact betweem two blocks.

.. figure:: examples/python/contact_mechanics_model/images/compression.svg
            :align: center
            :width: 20%

.. figure:: examples/python/contact_mechanics_model/images/contact.gif
            :align: center
            :width: 100%