New script for comparing buildstats from two separate builds. The script
has two modes: normally it prints the differences in task execution
(cpu) times but using --ver-diff option makes it just print the recipe
version differences without any cpu time data. Other command line
options are provided to alter the sort criteria of the data and to
filter out insignificant differences and/or short tasks.
Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
