Add posterior normalization for reflectivity curves
|Status:||Backlog||Start date:||21 Nov 2019|
Good first issue.
It can be implemented as an additional unit for representation (in the same way as RQ^4, q-space, degrees, etc.).
Such normalization can come handy for fitting data with noticeable footprint effect.
If normalization is not applied in this case and the footprint is one of the fit parameters,
intensity has to be adjusted at each fitting step.