Merge pull request #3 from sunwaylive/virtual-scanner

Virtual scanner
Merge pull request #4 from sunwaylive/virtual-scanner

Virtual scanner
Merge pull request #5 from sunwaylive/virtual-scanner

* add function definition propogate
* add project setting files
added three wlop confidences:
1,neighbor average
2,nearest wlop
3, 1*2
* modify some propogate
*propagate function now can get the next grid index