Add swap functionality

...luebutton-html5/imports/ui/components/media/container.jsx

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

...on-html5/imports/ui/components/presentation/component.jsx

...on-html5/imports/ui/components/presentation/container.jsx

...omponents/presentation/presentation-toolbar/container.jsx

...i/components/presentation/presentation-toolbar/service.js

...rts/ui/components/video-provider/video-menu/container.jsx

...mports/ui/components/video-provider/video-menu/service.js