[Charts] Add Option for Pie Charts

[hebbet]

Pie Charts would be nice

[joshhanley]

@hebbet thanks for the request! Do you use pie charts in your app? If so where do you use them? Can you share some screenshots?

[hebbet]

sure:

it shows in that case eg Spending per supermarket or shop

[joshhanley]

@hebbet can you show a screenshot of the whole page by any chance (as long as your comfortable with that), which shows the Pie chart in context?

[hebbet]

The diagram shows the sum of expenses per month grouped by different shops/supermarkets (German companies such as Aldi, Rewe, dm)

It is a kind of budget book