OpenTimelineIO: Windows: Import error after pip install

Bug Report

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• Incorrect functionality

Describe the bug here. If it is a build issue, please note whether the issue was encountered via cmake, pip, or tox.

To Reproduce

1. Operating System: Windows 10
2. Python 3.7.9, CMake installed
3. Example snippet that demonstrates the issue:

ImportError: DLL load failed: The specified module could not be found.

1. OpenTimelineIO 0.13.0

Expected Behavior

The import statement to work correctly.

Logs

Traceback (most recent call last):
  File "C:\Users\User\AppData\Local\Programs\Python\Python37\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "C:\Users\User\AppData\Local\Programs\Python\Python37\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "c:\Users\User\.vscode\extensions\ms-python.python-2020.9.114305\pythonFiles\lib\python\debugpy\__main__.py", line 45, in <module>
    cli.main()
  File "c:\Users\User\.vscode\extensions\ms-python.python-2020.9.114305\pythonFiles\lib\python\debugpy/..\debugpy\server\cli.py", line 430, in main
    run()
  File "c:\Users\User\.vscode\extensions\ms-python.python-2020.9.114305\pythonFiles\lib\python\debugpy/..\debugpy\server\cli.py", line 267, in run_file
    runpy.run_path(options.target, run_name=compat.force_str("__main__"))
  File "C:\Users\User\AppData\Local\Programs\Python\Python37\lib\runpy.py", line 263, in run_path
    pkg_name=pkg_name, script_name=fname)
  File "C:\Users\User\AppData\Local\Programs\Python\Python37\lib\runpy.py", line 96, in _run_module_code
    mod_name, mod_spec, pkg_name, script_name)
  File "C:\Users\User\AppData\Local\Programs\Python\Python37\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "E:\Logiciels\Stax\Dev\stax\test_otio.py", line 4, in <module>
    import opentimelineio as otio
  File "e:\Logiciels\Stax\Dev\stax\.venv\lib\site-packages\opentimelineio\__init__.py", line 35, in <module>
    from . import (
  File "e:\Logiciels\Stax\Dev\stax\.venv\lib\site-packages\opentimelineio\opentime.py", line 1, in <module>
    from . _opentime import ( # noqa
ImportError: DLL load failed: The specified module could not be found.