Harpy: Align longitudinal phase
Created by: lmalina
Phases of all spectral lines are aligned to the middle of analysed turns, to limit phase error originating from error in frequency. For example, if 6600 turns are analysed the resulting phases of spectral lines are valid in turn number 3300. However, the phase of synchrotron line "MUZ" is not aligned with the rest, i.e. the reference turn number is 0.