Low level design for Meeting scheduler

[codeimmortal]

Will add detail as i go.

[thesaltree]

Standard requirements in my head for a meeting scheduler are:

1. There should be multiple meeting rooms available.
2. Each room should have a capacity for a specific number of people.
3. If not already reserved, a room can be booked with a start time, end time, and duration.
4. Notifications should be sent to everyone invited to the meeting.
5. Users will get an invite even if they’re unavailable at the scheduled time. They can accept or reject the invite.

Please feel free to add or remove any requirements.

[codeimmortal]

PR is raised for above. Ready to merge @thesaltree . #4