Shadow to SRW conversion: the Shadow example "NSLS-II TES Beamline (from SRW)" does not convert correctly to SRW

[bruhwiler]

[moellep]

A few problems I see in the conversion of a Shadow dipole example to SRW.

• The electron beam position should have an initial drift of 0.
• The accuracy computation method should be set to Auto-Wiggler for the Intensity, Single-Electron Spectrum, and Initial Wavefront settings.

With those changes, the simulation produces results similar to the original SRW sim "NSLS-II TES beamline", although the propagation parameters would need to be adjusted to get a good match on the beamline page.