Integrate forecast into UI

[rachelasquith]

Summary

What/Why

Edits functions in app in order to display forecast using real data on the UI. Also added two scripts to show how to generate files needed in app if using real data. Addresses #6.

Your approach

Edited functions and added a flag to app/app/api.py to say if using real data or dummy.

What to review

• app/app/api.py
• app/app/components/forecast.py
• app/app/data/get_forecast_percentiles.py
• app/app/data/get_forecast_split.py

Checklists

This pull/merge request meets the following requirements:

• [x] code runs
• [x] developments are ethical
• [x] developments are secure (no data or notebook output)
• [x] you have made proportionate checks that the code works correctly
• [x] minimum usable documentation written in the docs folder

[amadeuspzs]

Thanks @rachelasquith. I'll be able to review once we have a data generator up and running (#3)