Hongzhan Chen authored Mar 10, 2022 and Jan Kiszka committed Mar 14, 2022

For Xenomai-cobalt enabled system, cobalt_switch_context means
that there is schedule and context switch in companion core(realtime
core), which we may need to do special treatment and take correct
action as main kernel sched_switch to visualize out-of-band state
of realtime tasks running in cobalt core. To achive our target,
we implement following:

  1. store corresponding cobalt_switch_context events into
     container data.
  2. modify pid stored in entry to be equal to next_pid to
     show correct color in cpu bar when cobalt_switch_context
     event happen.
  3. show blue hollow box to mark out-of-band state according to
     cobalt_switch_context events.
  4. clickable cobalt_switch_context plugin shapes.

Signed-off-by: Hongzhan Chen <hongzhan.chen@intel.com>
[Jan: rework installation]
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>