Add methods to retrieve playback/watched history for a period

[courville]

Add capability to retrieve playback history (resume points) for a given period or since a date.
Add capability to retrieved watched history (fully watched videos) for a given period or since a date.
This is useful to be able to limit sync span using last sync time stored information.
I will use this for my nova video Android application.

[UweTrottmann]

Thanks for submitting! As per contribution guidlines it would help me merge and release this faster if you added some unit tests for this (if that makes sense, I have not looked into how those methods work).

Anyhow, I will look at this in more detail once I find some time.

[courville]

Thanks for submitting! As per contribution guidlines it would help me merge and release this faster if you added some unit tests for this (if that makes sense, I have not looked into how those methods work).

Anyhow, I will look at this in more detail once I find some time.

Thanks for considering the contribution. I will contribute some tests later.

[courville]

Seems that the TEST_ACCESS_TOKEN needs a refresh to be able to validate the BaseTestCase (mvn test -Dtest=SyncTest).

[UweTrottmann]

Thanks for adding the tests! I'll look at this once I have time.

[UweTrottmann]

Decided to add a new playback method instead that accepts all possible arguments with #164.

Thanks again!