Categorize meetings

[remyb2canada]

Categorize Outlook meetings so that, at team retro, we have a better idea if we're putting time where it's urgent, or where it's important.

• red: meetings within or for our service offerings
• green: non-meeting work (e.g. time slotted for work outside of meetings)
• blue: any meetings outside of our service offerings (e.g. planning, submitted by someone else)