update: v2 subgraph

[denverbaumgartner]

currently, we have wired up a majority of our data work to the RubiconMarketLight subgraph. for a variety of reason we are going to need to switch to the RubiconV2 subgraph, and make some changes to how we handle a couple of things:

• token symbols and decimals: the v2 subgraph is written to be supported only by a full-node, meaning that we don't have access to call state to get token decimals/symbols/etc. this means we have to create some synthetic fields that will be based off of network token lists.
• we need to support multi-network data, and most likely rework some of the existing structure of the repo
• from here we will want to actually go through and ideally add some type of sanity check against state
• we will want to update docs to support access to this data :)