move phone api to audio/service.js

bigbluebutton-html5/imports/api/phone/index.js

bigbluebutton-html5/imports/api/verto/index.js

...ton-html5/imports/ui/components/actions-bar/container.jsx

...button-html5/imports/ui/components/actions-bar/service.js

...ml5/imports/ui/components/audio/audio-modal/container.jsx

.../imports/ui/components/audio/audio-settings/component.jsx

...ml5/imports/ui/components/audio/enter-audio/component.jsx

...ml5/imports/ui/components/audio/enter-audio/container.jsx

bigbluebutton-html5/imports/ui/components/audio/service.js

...ts/ui/components/breakout-join-confirmation/component.jsx

...uebutton-html5/imports/ui/components/deskshare/service.js