Add time remaining notification bar status

...button-html5/imports/api/meetings/server/eventHandlers.js

...5/imports/api/meetings/server/handlers/meetingCreation.js

...ports/api/meetings/server/handlers/timeRemainingUpdate.js

...html5/imports/api/meetings/server/modifiers/addMeeting.js

...nents/breakout-room/breakout-remaining-time/container.jsx

...ml5/imports/ui/components/notifications-bar/component.jsx

...ml5/imports/ui/components/notifications-bar/container.jsx

bigbluebutton-html5/private/locales/en.json