RootInteractive for Event display - exporting user defined selection points for further Machine learning training

[miranov25]

Goal:

User-defined bokeh selection (standard bokeh point selection) to be exported to some ASCII file for the later procession

Users should be able to control the attribute list to export. Example event display - spallation product reconstruction in the TPC r-φ and r-time(z) projections

user-defined attributes to export:

• space point index, eventID, list of track IDs
• x,y,z,Q

ML could be done later using