Add logging and test cases for Controlflow ops (#4129)
- Log subgraph calls during execution so we can trace the execution stack.
- Add a OneOp TC for If
This is a squashed commit of
465828c0 8aba0221 and
117a4712 .
ONE-DCO-1.0-Signed-off-by: Hanjoung Lee <hanjoung.lee@samsung.com>
Change-Id: Idfa7044145b855222ab8ab382291e2d05af63f78
Signed-off-by: Chunseok Lee <chunseok.lee@samsung.com>