Changes

releng: Bump org.antlr maven dependencies to 3.5.3

Bump antlr3-maven-plugin and antlr-runtime from version 3.5.2 to 3.5.3.

Change-Id: I41a34b6fa1659a2d054662f4fd4d78df3d89b214
Signed-off-by: Marco Miller <marco.miller@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/c/tracecompass/org.eclipse.tracecompass/+/203612
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>

releng: Bump the rcptt version from 2.5.3 to 2.5.4

Change-Id: Ief328cc127c3d28c3b708954c05cbbce983197c4
Signed-off-by: Marco Miller <marco.miller@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/c/tracecompass/org.eclipse.tracecompass/+/203613
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>

ctf.core: Implement parsing of clock fragments

Add logic to parse CTF2 clock fragments and therefore allow for
timestamp readings in CTF2. This implementation can be tested with a
modified version of [1] that will be shared (updated to include
CTF2-SPECRC-7.0 terminology) and can be compared with the equivalent
CTF1 trace [2].
Babeltrace has yet to share tests that include clock origins, so those
cannot be tested yet. An additional change was made to remove the
datastream TODO that was left over from a previous patch.

[1]https://review.lttng.org/plugins/gitiles/babeltrace/+/refs/heads/ctf2/tests/data/ctf-traces/2/succeed/barectf-event-before-packet/

[2]https://review.lttng.org/plugins/gitiles/babeltrace/+/refs/heads/ctf2/tests/data/ctf-traces/1/succeed/barectf-event-before-packet/

Change-Id: I46c2de5305b72ce8e4ef4834708b5887bd811bfc
Signed-off-by: Sehr Moosabhoy <sehr.moosabhoy@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/c/tracecompass/org.eclipse.tracecompass/+/203658
Tested-by: Marco Miller <marco.miller@ericsson.com>
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Reviewed-by: Marco Miller <marco.miller@ericsson.com>