Manage multiple element in graphs

[giorgionocera]

In the circular graphs showing the percentage of tokens (example in the image below) at the moment, only 2 values are considered.
E.g., 10% + 90% or 50% + 50%.
We need to allow the graph to get multiple values, moreover, we also may need that the number to sum to a value lower than 100.
E.g., 10% + 40% + 50% or 10% + 40% + 40% + 10% or 10% + 70%.
For this purpose, we also need to add other colors.

If needed, talk with the design dep to get the colors.

Implementation:

[giannnni]

We could improve that component in a way that provide different UI solutions based on scenarios with 2, 3 or >3 coins as pool elements.

[giorgionocera]

Thank you @giannnni! @EnricoBarbieri1997 let's move to the development.