* Initial attempt to mock AWS Media Live create_channel endpoint. Test fails.
* Completes basic implementation of Media Live create_channel endpoint
* Completes basic implementation of Media Live list_channels endpoint
* Adds skaffolds for describe_channel and delete_channel
* Adds unit test for delete_channel
* Adds unit test for describe_channel
* Reduces repetitive code by introducing a Channel model
* Implements MediaLive start_channel and stop_channel endpoints
* Fixes lack of support for the dash character in resource ARNs
* Implements MediaLive update_channel endpoint.
* Implements MediaLive create_input endpoint (and Input model).
* Implements MediaLive describe_input endpoint.
* Implements MediaLive list_inputs endpoint.
* Implements MediaLive update_input endpoint.
* Addse server tests for MediaLive
* Adds further url patterns for medialive
* Fixes url patterns
* Fixes url patterns
