Uniswap V3 Factory commands

[drinkcoffee]

We should have a crate that represents a uniswap v3 factory. Similar to the pool create, it might have capabilities directly using the uniswap v3 factory contract and via the Uniswap SDK. Some initial commands / capabilities:

• Given two tokens and a fee, return the address of the uniswap v3 pool contract. Return an error if the contract doesn't exist. Optionally, return an error if the pool has zero liquidity.
• Given two tokens, return a structure containing: the addresses of deployed pool contracts, the fee tier, and amount of liquidity.