Dumper fixing, dump some common std::map, std::set types with CDB.

- std::set/map: Introduce templates to iterate the MSVC STL
  implementation depending on type (since it inherits some
  basic set_traits that depend on the key/value size.
- Retrieve types correctly in CDB (buffer too short for STL-types)
- Fix std::map in GDB broken by previous commit.
- Introduce a dumper version check in GDB/CDB.
- Make GDB parse sizes in initial dumper call as well
- Fix special sizes to work with namespaced Qt (watchutils)