Cherry-pick "Merge branch 'Findnlohmann-master-20200921' into 'master'" into 1.0 (!728) · Merge requests · atlas / atlasexternals · GitLab

Attila Krasznahorkay requested to merge cherry-pick-e4e3f481 into 1.0 Sep 21, 2020

Findnlohmann_json.cmake Addition, master branch (2020.09.21.)

(Closes ATLINFR-3735)

See merge request !727 (merged)

(cherry picked from commit e4e3f481)

d107dbfb Added Findnlohmann_json.cmake to AtlasLCG.