tmf.ctf: Accelerate ByteArrayDefintion parsing

tmf.ctf: Accelerate ByteArrayDefintion parsing

Make BADs no longer need to generate definitions uselessly.

This patch yields a 15-50% acceleration in Synchronization benchmarks,
a 5% acceleration in the Kernel Analysis benchmark, and an average event
size reduction of 33%.

Change-Id: Ie581abaecf1d8b188de9f1acc3010fe3f7a65d7a
Signed-off-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/52024
Reviewed-by: Hudson CI
Reviewed-by: Patrick Tasse <patrick.tasse@gmail.com>