Feature - Implement validation of deposit fees in bitcoin transactions

1. Description

Before a signer signs a bitcoin transaction they need to make sure that the fee associated with each deposit transaction input is below the associated max fee.

1.1 Context & Purpose

We need to respect the max-fee, and this is the signers' validation check.

2. Technical Details:

2.1 Acceptance Criteria:

• We have code that validates an assessed fee against the max-fee.

3. Related Issues and Pull Requests (optional):