readme: fixed a mistake
src: improved readability
src: added a class method 'Matrix.Zero()'
test: added 'Matrix.Zero()' testing
readme: added 'Matrix.Zero()' api
Merge branch 'feature/Matrix' into develop
src: added a class method 'CMatrix.Zero()'
test: added 'CMatrix.Zero()' testing
readme: added 'CMatrix.Zero()' api
Merge branch 'feature/CMatrix/Zero' into develop
src: improved some code
test: updated testings
readme: updated 'CMatrix.Zero()' api
Merge branch 'feature/fix_Matrix_and_CMatrix's_class_method_Zero' into develop