for #2617 added min/max intensity fields
for #2617 added min/max intensity fields

- add useIntensityLimits, minIntensityLimit, maxIntensityLimit to several reports
- refactor common fields into _INTENSITY_REPORT_3D super-model

mkeilman/sirepo,radiasoft/sirepo,mkeilman/sirepo,radiasoft/sirepo,radiasoft/sirepo,mkeilman/sirepo,radiasoft/sirepo,mkeilman/sirepo,radiasoft/sirepo