[Feature]: Create complete-deposit transactions

[djordon]

Feature - Create complete-deposit transactions

1. Description

The signer coordinator needs to put together stacks transactions for minting sBTC by creating a complete-deposit transaction. This ticket is for generating the stacks transaction (or in this case the CompleteDepositV1 struct) that can pass validation by other signers.

1.1 Context & Purpose

We need to actually generate the stacks transaction before we could submit it for other signers to sign. Luckily we know validation will look like, so we know what a properly created transaction will look like.

2. Technical Details:

2.1 Acceptance Criteria:

• We have the code that creates a complete-deposit smart contract call object for deposits that have been swept in.

3. Related Issues and Pull Requests (optional):

This ticket is part of #320.

• feat: add validation for complete-deposit transactions #545
• [Feature]: Create accept-withdrawal transactions #564