Build ParseTime on windows

[seanpmorgan]

Per #771 we're unable to build ParseTime Op on windows. AFAIK we have no exported symbols for ABSL so at the moment this will be unavaiable in windows.

Options going forward:

• Follow up with TF-Core team on getting these exported / how to link with them
• Add absl as a dependency in our build

Relevant issue:
#663

cc @helinwang @scentini

[seanpmorgan]

TensorFlow Addons is transitioning to a minimal maintenance and release mode. New features will not be added to this repository. For more information, please see our public messaging on this decision:
TensorFlow Addons Wind Down

Please consider sending feature requests / contributions to other repositories in the TF community with a similar charters to TFA:
Keras
Keras-CV
Keras-NLP