Changes

Add flamegraph analysis to the
 opentracing trace type- tracecompass part

*A new function (processSpanStateChange) is
 added to the TransientState class. Because in
 async traces unlike sync traces, the position of
 the event in fOngoingInfo is not the same as
 the quark of the event in the call stack.
 So we should pass two integer, quark and
 callstack quark to the function.

* the Statesystem and ItmfStateSystem classes
 are changed relayed to this function.
Signed-off-by: Fariba Daneshgar <faraji.daneshgar@gmail.com>
Change-Id: I5d9244993ac0e483d6c7209a5e3e46d491255ecf