analysis/tasks: add support for single tasks plotting
analysis/tasks: add support for single tasks plotting

Signed-off-by: Patrick Bellasi <431c86f368affbc3148c4669fbd465131f7e82cb@arm.com>

ARM-software/lisa,joelagnel/lisa,credp/lisa,joelagnel/lisa,credp/lisa,bjackman/lisa,ARM-software/lisa,arnoldlu/lisa,mdigiorgio/lisa,ARM-software/lisa,mdigiorgio/lisa,arnoldlu/lisa,credp/lisa,credp/lisa,bjackman/lisa,ARM-software/lisa