Re-incorporate the teams example/tests from OpenSHMEM specification#907

Merged

davidozog merged 10 commits intoSandia-OpenSHMEM:masterfrom davidozog:pr/teams_spec_tests

Dec 12, 2019

+106-40

Commits on Nov 19, 2019

Revert "Remove sketchy spec tests"
David M. Ozog
committed

Commits on Nov 21, 2019

Moved specification example tests to test/spec-example
wrrobin
committed

Commits on Nov 22, 2019

Updated ctx, test, and wait_until tests to be sync'ed with the spec examples
wrrobin
committed

Commits on Nov 23, 2019

Commits on Dec 4, 2019

Keeping local changes to context texts in spec-example to allow c99 compile/runs and other checks
wrrobin
committed