Implementation of core AWS Media Live endpoins (#3428)

* 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

moto/core/responses.py

@@ -324,7 +324,12 @@ class BaseResponse(_TemplateEnvironmentMixin, ActionAuthenticatorMixin):
         def _convert(elem, is_last):
             if not re.match("^{.*}$", elem):
                 return elem
-            name = elem.replace("{", "").replace("}", "").replace("+", "")
+            name = (
+                elem.replace("{", "")
+                .replace("}", "")
+                .replace("+", "")
+                .replace("-", "_")
+            )
             if is_last:
                 return "(?P<%s>[^/]*)" % name
             return "(?P<%s>.*)" % name