- widget make report done
- class report.cs done (added src/report.cs)
- button "add to report" added on stats widget (added src/gui/report.cs). It comunicates with report.cs

- doing: select the file and print the report, and show some "ok" info (inherites from exportSession).
-pending: manage how stats and graphs classes print in HTML


exportSession record runs and runsInterval

All widgets (except app1, jumps_runs_more, stats_window, report_window) converted to "dialog type", now they cannot be hided under main window. Changed the "modal" value to "No" in stats_window and report_window, now they can be loaded all time (and work normal in the others)

fixed bug in graphs, global indexesQ, and fv in multisession when in a session there is no data