Add a method to get a list of registered faces

#39

Supports min_confidence

Can now configure a min_confidence lower than the default 0.45

Support custom models

Adds support for custom models as shown in the object detection Jupiter notebook.
Quite major refactor under the hood

Improved error handling

Hopefully addresses #20

Includes scene recognition

Now includes scene recognition -> https://deepstackpython.readthedocs.io/en/latest/scenerecognition.html

Register and recognise faces

Merge pull request #15 from robmarkcole/adds-register-face

Adds register face

Adds face detection

Adds face detection and makes version even with pypi

v0.1

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