Add decoding for TWAP orders

[iamacook]

Description

To facilitate the TWAP-relevant designs, we need to add decoding of TWAP orders. These can either be a multiSend call enabling the Fallback Handler and creating an order with the ComposableCoW contract (createWithContext) or just creating an order createWithContext.

Note: we believe we can decode the createWithContext parameters to get the required information (it calls ethers' decodeFunctionData). (We may need to make an API call to determine the fulfilment percentage.)

Requirements

• Ascertain the required fields for the design
• Determine the sources of the aforementioned
• Map the fields into (batched) transactions to the relevant contract, calling createWithContext

Additional information

• Designs
• Notion task