New reference data
I propose (@kraus) to generate new reference data for the following tests:
EGun-CTF3-1 EGun-CTF3-2 PSIGUN-1 AWAGun-1
At the same time the "Required Accuracy" should be set to a reasonable value. I am suggesting 1e-7 for these tests, by simply looking at the statistical fluctuations taking into account the number of particles used in the test.