Implement DeleteTorrent and DestroyTorrent, with tests

DestroyTorrent new version and tests
Implement DeleteAllTorrents and DestroyAllTorrents, with tests
Implement StartTorrent and StartAllTorrents. No tests.
Implement StopTorrent and StopAllTorrents. No tests.
Implement QueueTorrent and QueueAllTorrents. No tests.
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