Sweeping !20412 from 21.3 to 21.9. Integrate NSW matching algorithm in NSWPRDTest finalize

Integrate NSW matching algorithm in NSWPRDTest finalize

See merge request !20412 (merged)

Adding original author @mveen as watcher.

restored source branch cherry-pick-c5b06e392c-21.9

This merge request affects 1 package:

• MuonSpectrometer/MuonValidation/MuonPRDTest

Adding @rosati ,@wleight as watchers

added 21.9 MuonSpectrometer review-pending-level-1 labels

CI Result SUCCESS

	Athena
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-20657-2019-01-26-08-02
Athena: number of compilation errors 0, warnings 166
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merged

mentioned in commit 53c4be46