Flint: Allow to edit roi2spectrum with edit_roi_counters

Closes #2020 (closed) Closes #1869 (closed)

This MR allow to edit the ROIs from Lima device roi2spectrum (ROI profile in BLISS) with the default BLISS command edit_roi_counters.

• Flint provides 2 specific ROIs for vertical and horizontal profile on ROIs.
• It creates unique name anyway for any kind of ROIs (roi_counters or roi2spectrum_counters).
• Use BLISS ROI object in FLint RPC in order to remove intermediate dict
• Provide dedicated Lima ROI (for rect and arc) on the GUI in order to have more flexibility
• Provide a new plot widget to display ROI profile result from a detector

This provides new features and a nice clean up of the code. Which should make further changes easier.