add profiling to vcldemo

usage (5 test runs): vcldemo --test 5

Change-Id: Ib8c3db1e74f4a05f16a5359fe8645ffc61e891d5
Fix C2864: only static const integral data members can be initialized within

Change-Id: I01f66eb78e357780f35cfd1df6722301cc5753b2
vcldemo profiling: avoid unnecessary calls

Change-Id: Ic7ecfe85826d9148d14fce14e9de3f80a11eb775