lami: Implement a custom chart data provider

lami: Implement a custom chart data provider

This patch adds a data model for a LAMI analysis. It also implements a data
provider into the result table.

This allows the creation of custom charts using the tmf.chart plugin

Change-Id: I1375c81c6e99538d4b2e86afb517c4014b0a8a98
Signed-off-by: Gabriel-Andrew Pollo-Guilbert <gabrielpolloguilbert@gmail.com>
Signed-off-by: Geneviève Bastien <gbastien+lttng@versatic.net>
Reviewed-on: https://git.eclipse.org/r/76899
Reviewed-by: Hudson CI