debug matching
update trainingMetric
    add new side matching method, MATCHING_STSIM
    this will use 9 small STSIM (and average) to find the side matching
    modify the BoundaryMatching function to output a
vector<pair<Point3i,double>> data, for candidate location and side
matching score.
    modify IsAcceptMatching function to input matchScore (which is
candidate side matching score)
    git it
    add parallel to MATCHING_STSIM  (using PARALLEL_MATCHING 1)
fix bug on stsim side matching MATCHING_STSIM
implement stsim partial MATCHING_STSIM_PART, STSIM_PART
update matching_hiearchy use side partial stsim
apply multi-thread
before enable parallel metric
Matching_stat : compute all the features for all the candidates