logdet → linsolver 关系

文件在 src/shogun/mathematics/linalg/ratapprox/logdet	在 src/shogun/mathematics/linalg/linsolver 中引用
computation / job / RationalApproximationCGMJob.cpp	CGMShiftedFamilySolver.h
computation / job / RationalApproximationIndividualJob.cpp	LinearSolver.h
opfunc / LogRationalApproximationCGM.cpp	CGMShiftedFamilySolver.h
opfunc / LogRationalApproximationIndividual.cpp	LinearSolver.h