trace.pl: Add support for colouring context execution

Add the command line switch which uses different colours for different
context execution boxes.

v2:
 * Use HSL to simplify color generation. (Lionel)
 * Colour other boxes in the same colour but different shade so it is
   easier to follow the timeline.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: John Harrison <John.C.Harrison@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> # v1
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>

0 files changed, 0 insertions, 0 deletions