[sBTC] Feat: Peg-in operation wire format

[netrome]

This PR introduces an alpha version of the wire format for the Peg-in operation, intended for early end-to-end testing of sBTC. This version do not validate the peg wallet address, which is left to an external stacker application for the alpha test phase.

I've created #3494 as a follow-up task to add the validation of the peg wallet address once Epoch 3.0 and the updated .pox contract is ready.

[codecov]

Codecov Report

Merging #3486 (9d8675d) into next (1e32f7e) will increase coverage by 0.85%.
The diff coverage is 38.49%.

@@            Coverage Diff             @@
##             next    #3486      +/-   ##
==========================================
+ Coverage   30.55%   31.40%   +0.85%     
==========================================
  Files         304      305       +1     
  Lines      271424   276271    +4847     
==========================================
+ Hits        82923    86760    +3837     
- Misses     188501   189511    +1010     

Impacted Files	Coverage Δ
...larity/src/vm/analysis/arithmetic_checker/tests.rs	0.00% <0.00%> (ø)
.../vm/analysis/type_checker/v2_05/tests/contracts.rs	0.00% <0.00%> (ø)
...c/vm/analysis/type_checker/v2_1/tests/contracts.rs	0.00% <0.00%> (ø)
clarity/src/vm/ast/errors.rs	27.74% <0.00%> (-0.19%)	⬇️
clarity/src/vm/database/clarity_store.rs	61.81% <ø> (ø)
clarity/src/vm/docs/mod.rs	0.00% <ø> (ø)
clarity/src/vm/types/serialization.rs	42.05% <ø> (+0.10%)	⬆️
src/burnchains/bitcoin/bits.rs	8.90% <0.00%> (ø)
src/burnchains/tests/affirmation.rs	0.00% <0.00%> (ø)
src/burnchains/tests/burnchain.rs	0.00% <0.00%> (ø)
... and 158 more

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[igorsyl]

Adding @donpdonp, @sergey-shandar and @xoloki as reviewers to become familiar with this code.

[netrome]

@jcnelson FYI I'm not authorized to merge this PR. Can you add me as maintainer so I can merge once it's approved and CI is green?

[netrome]

In stx_transfer_btc_integration_test:

 #5 159.5 thread 'tests::neon_integrations::stx_transfer_btc_integration_test' panicked at 'unexpected btc transaction type', testnet/stacks-node/src/tests/neon_integrations.rs:1709:21

This is unrelated to the peg-in changes, and was introduced when develop was merged (which I've reverted now). This test failure needs to be addressed to unblock #3564. FYI @pavitthrap

[netrome]

Rebased on latest next and CI is green ✔️. @jcnelson I'd love it if you could have a look if this is okay to merge.

[jcnelson]

LGTM! Great job on this @netrome!

[netrome]

LGTM! Great job on this @netrome!

Thank you! I'm not currently authorized to merge, can you press the magic button for me @jcnelson?