Offset Fixes

[rhurey]

While the strongly typed instance properties for the audio offsets had been fixed up to account for multiple turns, the underlying JSON in the result objects wasn't.

This addresses that and add test cases for them.

Fixed and re-enabled the silence detection tests. Also cleaned up the linter errors in a couple of test files.

[rhurey]

/azp run

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s).

[rhurey]

/azp run

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s).

[rhurey]

/azp run

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s).