svd on CSCMatrix based on arpack following mtj and scipy


Based on:

 hhttp://docs.scipy.org/doc/scipy/reference/generated/scipy.sparse.linalg.eigs.html and this is how it's done  https://github.com/fommil/matrix-toolkits-java/blob/master/src/main/java/no/uib/cipr/matrix/sparse/ArpackSym.java


probably needs more testing....