1. Let 'isa<T>()' calls 'IsSameTypeId()' when T is final,
   and we add 'final' mark to some final classes derived from Base;

2. Generate type id at compile time using constexpr hash function,
   remove TypeIdManager and related code;

3. Add a tool script 'scripts/check_tid.sh' to check tid uniqueness;

4. Improve type search in 'proto_exporter.cc' and 'convert_utils_py.cc';

5. Add some missed MS_DECLARE_PARENT;

6. Ensure calls of 'parent_t::IsFromTypeId()' are all inlined.