This is required for beamlines at SNS that are running the ADARA software.

Specificially, `PeakPositions` and `DetectorsPeaks`.

Refs #11145

To FindPeaks, GetDetOffsetsMultiPeak and CalibrateRectangularDetectors.
On branch feature/10200_findpeaks_min_maxobsy
Changes to be committed:

      modified:   ../Mantid/Framework/Algorithms/inc/MantidAlgorithms/FindPeaks.h
      modified:   ../Mantid/Framework/Algorithms/inc/MantidAlgorithms/GetDetOffsetsMultiPeaks.h
      modified:   ../Mantid/Framework/Algorithms/src/FindPeaks.cpp
      modified:   ../Mantid/Framework/Algorithms/src/GetDetOffsetsMultiPeaks.cpp
      modified:   ../Mantid/Framework/PythonInterface/plugins/algorithms/CalibrateRectangularDetectors.py

The converted text is stored in separate .rst files in the docs directory.
Refs #9562

Refs #9059

Refs #9059