Set autcrlf so that it does not touch any files.

Also some times we actually want to track `*.mat` files

git-svn-id: https://svn.modelica.org/projects/Modelica_ElectricalSystems/Modelica_ElectricalEnergyStorages@7072 7ce873d0-865f-4ce7-a662-4bb36ea78beb