Turbodbc

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* Ensure we can correctly load ``arrow_python.dll`` on Windows.
* Various build system fixes as we now have macOS and Windows CI.
* Set ``_LIBCPP_DISABLE_AVAILABILITY`` to allow building with C++17 on macOS.
* Replace usage of ``boost::locale`` with their C++17 equivalents.

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* add in support and test for cursor.nextset() when dealing with multiple result sets
* modified the pyarrow logic in the setup.py to utilize the following helper
functions
* pyarrow.get_include()
* pyarrow.get_libraries()
* pyarrow.get_library_dirs()
* Bump pyarrow support to <11
* Requires an additional pyarrow specific include directory
* Update the Microsoft ODBC Driver 17 for SQL Server version
* Bump c++11 to c++17 to enable pyarrow10 support
* Remove static lib logic for FindArrow

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* Update package requirements so that ``pyarrow>=1.0,<9.1`` can be used.

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* Update package requirements so that ``pyarrow>=1.0,<8.1`` can be used.

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* Bump version number to fix faulty release

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* ``oldest-supported-numpy`` is only for ``pyproject.toml``, thus we removed it from
``setup_requires`` again.