Improve arrays implementation in C++ runtime library

[mikir]

C++ generated code uses for arrays special inner classes. For example for checking of offsets (ZserioOffsetChecker_*) or for initializing of offsets (ZserioOffsetInitializer_*). These inner classes store reference to owner (Zserio object) and are copyable. Such solution is error prone and can potentionally lead to dangling pointer (see #501).

Therefore, it would be better and safer to redesign C++ arrays to accept reference to owner directly in arrays' calls (e.g. in read(), write(), etc...)