Feat/roadmap to mvp

[tesla809]

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Please include the issue number the pull request fixes by replacing YOUR-ISSUE-HERE in the text below.

Fixes #670

Summary

Creates a MVP ROADMAP based on feature needs from our first possible user @DocMusher, a Belgian doctor who WANTS to use the product.

Details

There is a lack of a ROADMAP on what is needed to get the project to the next level. Creating a ROADMAP for MVP based on user validation solves this problem.

Test Plan (required)

N/A

Final Checklist

• [x] For CoronaTracker, did you bump the version in package.json?
  • Update the second decimal for a major change
  • Update the third decimal for a minor change
  • Numbers can go past 9, e.g. 1.0.9 => 1.0.10
  • For more info, read about Semantic Versioning
• [x] Did you add any new tests as necessary?
• [x] Is your PR rebased off the most current master?
• [x] Have you squashed all commits? (can be done at merge)
• [x] Did you use yarn not npm? (important!)
• [x] Did you use Material-UI wherever possible?
• [x] Did you run yarn lint on the code?
• [x] Did you run all of your most recent changes locally to make sure everything is working?