Dizquetv

- Fix bug when retrieving a channel that has no programs

**Full Changelog**: https://github.com/nwithan8/dizqueTV-python/compare/1.5.0.6...1.5.0.7

- Fix bug when trying to retrieve all channel programs

**Full Changelog**: https://github.com/nwithan8/dizqueTV-python/compare/1.5.0.5...1.5.0.6

- Fix bug when trying to get the lowest channel number when no channels exist
- Loosen dependency restrictions to prevent pip deadlock

**Full Changelog**: https://github.com/nwithan8/dizqueTV-python/compare/1.5.0.4...1.5.0.5

New
- Get highest or lowest active channel number
- First-party support for adding collections and playlists to a dizqueTV channel
- `add_programs_to_channels` can use Plex items as well as `Program` objects

Improved
- `.channels` workaround runs multithreaded for faster loading

**Full Changelog**: https://github.com/nwithan8/dizqueTV-python/compare/1.5.0.3...1.5.0.4

Fixed:
- Temporary patch for `dizqueTV.API.channels` property until server-side API logic is fixed. Makes an API call for each channel, so beware, this is much slower now.
- Reworked `channel_count` property to not use `channels` property since speed is reduced.


**Full Changelog**: https://github.com/nwithan8/dizqueTV-python/compare/1.5.0.2...1.5.0.3

What's Changed
* Fix dict combination bug
* Improve combining dicts logic


**Full Changelog**: https://github.com/nwithan8/dizqueTV-python/compare/1.5.01...1.5.0.2