test: fix a mistake
src: improve the constructors of CMatrix
test: add testings of constructors of CMatrix
test: fix a mistake
readme: update the api of constructors of CMatrix
src: improve the constructors of CVector
test: add the testings of constructor of CVector
readme: add the api of constructors of CVector
src: modify code for linting pass
test: fix a mistake
src: improve the constructors of CRowVector
test: add the testings of constructor of CRowVector
readme: add the api of constructors of CRowVector