tmf: Add the view ID to some JUL log statements of time graph views

tmf: Add the view ID to some JUL log statements of time graph views

This patch adds a getViewId() method to AbstractTimeGraphView that returns the
view's primaryID:secondaryID string corresponding to the view. This view ID is
added to some JUL log statements.

Change-Id: Ica415d919883822676f0f1c107bcd3b631ea9c67
Signed-off-by: Geneviève Bastien <gbastien+lttng@versatic.net>
Reviewed-on: https://git.eclipse.org/r/77395
Reviewed-by: Hudson CI
Reviewed-by: Patrick Tasse <patrick.tasse@gmail.com>
Tested-by: Patrick Tasse <patrick.tasse@gmail.com>