Display widget Image associated to one sample or selection

[Tomansion]

Is your feature request related to a problem? Please describe. If we want to now why a sample was badly predicted, we can select it and display it with the widget

Also look at T-sne for multiple sample selected

For time series : You can display an image that represents a sequence of data with the help of a plugin and some config (calculated in the backend?). Allows to add context, more information to data.

[Tomansion]

TODO: Create an issue to have plugins (widgets that can be imported, they aren't stored in the main code)