And make use of wavelength parameter in FindPeaksMD and PeaksWorkspace.

Moved code from FindPeaksMD into new method on Goniometer. Then added option onto peaks workspace.

This includes dragging the libcxx implementation of normal_distribution
and uniform_int_distribution into our source. MSVC, clang and gcc don't
agree on how this should be implemented leading to problems with
comparing test results across platforms. Using a single implementation
gives the same results on each platform.

(cherry picked from commit d160131d)

(cherry picked from commit eb6d6c9e)

(cherry picked from commit 61729042)

(cherry picked from commit a9afae48)

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Merge done to enable documentation be be fixed, because of removal of
alias directive and addition of related algorithms directive.

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>

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Elliot Oram authored 7 years ago and Gigg, Martyn Anthony committed 7 years ago

PredictFractionalPeaks was using a new raytracer for every peak it created and therefore throwing away the caching information about the bounding boxs of detectors / panels causing a huge slow down. Resolved by exposing the findDetector(raytracer) overload to IPeaks and using single raytracer for all calls.
Work also include small refactor for const autos

Refs #22060

Refs #20599