Lttng-parser is to parse reqid based tracepoint, current version is able to get interval between multi tracepoint, get specific field in lttng log, and cal the interval of same thread

Signed-By: Chendi.Xue <chendi.xue@intel.com>
Merge pull request #2 from xuechendi/Chendi_wip_lttng_postprocessing_scripts

Lttng-parser is to parse reqid based tracepoint, current version is able...