Implemented DC space charge calculation on the EnvelopeTrackerBase class that...
Implemented DC space charge calculation on the EnvelopeTrackerBase class that can be used by setting setUseDCBeam(True). Also in the BeamEllipsoid class the correct calculatiosn for the DC beam was added in case of a tilted ellipsoid in configuration 2D space. In BunchProbe and BunchProbeState the calculation of the correct perveance for a DC beam was implemented, the values can be accessed by requesting beamDCPerveance() from the probe used.