CPPLapack Code

A lot of minor changes has been done.
Probably there are no need to modify your project codes using CPPLapack.

Main modifications are the followings.
1)All the private menmer objects (e.g. M, N, Array, etc.) were removed and put in public.
This modification made CPPLapack unsafe a bit and extendable a lot.
We highly recomend CPPLapack users to use valgrind with building your codes in debug mode.
2)Some implicit cast operators were removed.
Use to_XXXmatrix() functions instead.