SubItems update: be able to deal with dict and array values by unfolding them

[Tomansion]

Is your feature request related to a problem? Please describe.
Somme of my data are composed by arrays of dict (object detection project in image), we can't analyze them without creating a second project.

Describe the solution you'd like
DebiAI supports array in data, be able to 'unfold' data vertically if it's an array, horizontally if it's an array.