This adds the function used by the npr-news-skill and spotify-skill to
communicate their info to the playback control showing the default
playback UI.
The function has the common parameters specified but is setup to be able
to add new functionallity without core changes.
- MycroftSkill and related core functions to mycroft_skill.py
- FallbackSkill to fallback_skill.py
- Add important classes decorators and functions to __init__.py
- move SkillGUI class to the enclosure along with the other enclosure
interfaces
core.py retains the same members as previously by means of imports to
retain backwards compatibility. When most of the available skills starts
using this new structure properly
The scoring for CommonPlay would favor skills that responded with overly long
matches. E.g. "Huey Lewis and the News" would be considered a better fit than
just "News" for the request "Play the News"
The CommonPlaySkill base class provides an easy base class for any
skill wishing to use the "Common Play" framework. This allows multiple
skills to jointly handle requests such as "play Janet Joplin",
"play my Sled Zepplin playlist", "play NPS news" or "play Strump's
speech to the UN". Previously the "wildcard" intents needed to handle
this were basically impossible -- only one skill got a shot at handling
the request. Now several skills to search their service to see if they
have anything that can service the request. The service with which
reports the highest confidence gets invoked.
The CommonPlaySkill makes it easy to implement this. Simply derive a
skill from CommonPlaySkill (instead of MycroftSkill) and override
the two required methods CPS__match_query_phrase() and CPS__start().
The skill can then use self.CPS__play(url) to begin playback, or invoke
a unique player to interact with a custom service.