Merge branch 'thoennes/update-json-lib' into 'master'

update external json lib See merge request walberla/walberla!308

Merge branch 'thoennes/update-json-lib' into 'master'
update external json lib See merge request walberla/walberla!308
60c1842b · Dominik Thoennes · 64d0d56d · d0e84e76 · 60c1842b
Commit 60c1842b authored 4 years ago by Dominik Thoennes
--- a/src/core/extern/json.hpp
+++ b/src/core/extern/json.hpp