displaying more dataset info in analysis builder

[rbroc]

It might help to be able to see more details on the available datasets when you have to select them in neuroscout.org analysis builder.
Could be useful to expand the datasets table displayed in the analysis builder , potentially adding:

• more systematic info on which modalities are available in the dataset (e.g. a yes/no value coding for presence of "auditory", "visual", "speech" info)
• duration
• TR and/or number of TRs per subject
• tasks (passive viewing/listening or other)
• dataset id used to retrieve dataset details when accessing API via pyNS
• when dataset is a subset of the linked dataset, pointer to how and why this has been done
• reference to most relevant paper?

[rbroc]

possibly specify summary demographics (gender ratio, age, handedness, healthy/patients), either as separate field in table or just in the dataset description. One option would be to just specify this info when sample is "abnormal" in some respect.

[rbroc]

Maybe add a separate tab or pop-up menu on acquisition sequence (TR, spatial resolution, etc.)

[adelavega]

• Authors: Remove as column, or make First author et al.,:
• Add modality as a column (in back end, add friendly modality name) (For now, have only 1 per dataset, but once we have more, you can sort by first)
• Move link to +

[adelavega]

Move task information, or at least list task specific information in Dataset information table

[adelavega]

For demographics, for now either show summary statitics, or point to a more info in docs, or original dataset docs.

[rwblair]

includes a fix for #692 where the total number that will ever be displayed is only the number of runs for that task instead of all all runs for dataset.