tree cb8124e4903286fff9a693b40837cce13ccd9bbe
author Nicolas Sylvain <nsylvain@google.com> 1576890208 -0800
committer Nicolas Sylvain <nsylvain@google.com> 1576890223 -0800

Initial import of nlassert

From https://github.com/nestlabs/nlassert
at revision 700bd55d6ea6ca1bedaa2f86bc17e8c0313139aa