creating new branch for dm

The branch includes test file (test.py). It works fine if we use the test file (with given lenslet position). However, calling it from main.py still needs parameters from others. Furthermore, the dm function now requires additional parameter (paramsActuator) in order to work.
The number of points inside the reconstructed wavefront is not the same as the number of actuators + 1. It could be a very different number.