Bug fixes:

* Add ``__repr__`` to Result class (#68)
* Drop support for Python 3.6 (#70)
* bug 1706075: add Windows functions to prefix list
* bug 1699492: fix mutation issues in signature generation
* bug 1705027: add ``NS_CycleCollectorSuspect3`` to prefix list
* bug 1702984: add ``std::vector<T>::_Emplace_reallocate<T>`` to the prefix list