Update JSON Report Structure for v11

[popescu-v]

Update core/analysis_results.py and core/coclustering_results.py according to comment KhiopsML/khiops#223 (comment) / section "Khiops reports files .khj".

Also take Text and TextList into account.

[folmos-at-orange]

Are we finally going to support tree reports #35 ?

[popescu-v]

Are we finally going to support tree reports #35 ?

IIUC, this could wait until after the 11.0.0.0 is released, right?