Code coverage for shared dropped below 100% (again)

[skliper]

Is your feature request related to a problem? Please describe.
shared/src/osapi-common.c: OS_DeleteAllObjects missing coverage
shared/src/osapi-idmap.c: OS_ObjectIdFinalizeDelete not covered

Describe the solution you'd like

1. Add coverage back in
2. Enforce 100% coverage in CI

Describe alternatives you've considered
At minimum add coverage back... CI really should enforce or we will keep missing code coverage.

Additional context
None.

Requester Info
Jacob Hageman - NASA/GSFC