Read in complex 2dseq

[LucaNagel]

A new property reco_type for 2dseq files was created. This now checks the VisuCoreFrameType in the visu_pars file.
Depending on the value (IMAGINARY_IMAGE + REAL_IMAGE, IMAGINARY_IMAGE, REAL_IMAGE, PHASE_IMAGE or MAGNITUDE_IMAGE (default)), in deserialize in the schemas.py and loads the data accordingly.
This means that complex reconstructed data (REAL_IMAGE AND IMAGINARY_IMAGE) will be loaded as complex data

[tomas-psorn]

Hi @LucaNagel, sorry for taking so long to response. I would prefer not to do this change in order to keep the inner logic of data reading as simple as possible. At the same time, a solution for your problem is actually already implemented in the API, it's called FrameGroupMerger, here's an example of how it's used:

from brukerapi.dataset import Dataset
from brukerapi.mergers import FrameGroupMerger
d = FrameGroupMerger.merge(Dataset(<path>), 'FG_COMPLEX')`