making use of [Eigen](http://eigen.tuxfamily.org/index.php?title=Main_Page)
doing point correspondence as a part of query of geometric-hashing
additional support from  KgGeometricHash_Traits on Locality-Sensitive-Hash entry
Locality sensitive hashing does multi-probing
template-meta-programming implementation of integral-power function
correcting point correspondence to use pointers of HashEntr-ies rather  than HashEntries