hdf5_ep

[svn-r23120] Removed -VV from the ctest command line so that it does not send debug output
to the standout.  This keeps command output terse and easier to tell if it
passes or not.

Added time stamps printing.
Added exit code and command executation summary.

All these will make it easier for user to tell if the command succeeds or not.

Tested: {jam,koala,ostrich} all passed. {Linew,fred,duck,owl} failed.
The failure is the cmake process, not cmakehdf5 itself.