ss: Introduce a safe byte buffer wrapper for use by custom state values

ss: Introduce a safe byte buffer wrapper for use by custom state values

This byte buffer wrapper safely wraps a ByteBuffer inside a class that does not
allow to pass the limit or change the position so that custom state values can
safely write directly to it, without passing by byte arrays.

Change-Id: I428ee4406aa2a913d91ebc2c075bc92861286b3f
Signed-off-by: Geneviève Bastien <gbastien+lttng@versatic.net>
Reviewed-on: https://git.eclipse.org/r/72359
Reviewed-by: Jean-Christian Kouame <jean-christian.kouame@ericsson.com>
Tested-by: Jean-Christian Kouame <jean-christian.kouame@ericsson.com>
Reviewed-by: Hudson CI
Reviewed-by: Alexandre Montplaisir <alexmonthy@efficios.com>