dev: add more data & feed types

[EvolveArt]

Goal

In the V2, we need more data for our feeds to fulfil our needs. The main reference being the PragmaDecoder solidity contract where data feeds are decoded from the bytes constructed in Theoros.

For example in TWAP feeds we don't have any data on the volume or the number of data points used.

Note

This work should be done on a separate branch v2/contracts so we don't mix up stuff with starknet implementation.