Create github workflow

[shepherdjay]

Will resolve #8

[shepherdjay]

So I've created this workflow but the tests are failing with the following:

tests/system_test.py:12: in <module>
    class FakeDataset:
tests/system_test.py:16: in FakeDataset
    category=OriginCategory.Dataset
/opt/hostedtoolcache/Python/3.6.12/x64/lib/python3.6/enum.py:326: in __getattr__
    raise AttributeError(name) from None
E   AttributeError: Dataset

I looked through the system_test.py and it does appear OriginCategory doesn't actually have a Dataset attribute but I could be reading this wrong. Is this test failing expected?