Add stacks blockchain

[xoloki-stacks]

Description

This PR adds support for the Stacks (STX) blockchain.

How to test

Standard Rust and C++ tests are implemented, and will be executed during normal testing.

The C++ tests can be run explicitly via:

./build/tests/tests --gtest_filter='*Stacks*'

The Rust tests can be run explicitly via:

pushd rust; cargo test stacks; popd

Types of changes

• New feature (non-breaking change which adds functionality)

Checklist

• Create pull request as draft initially, unless its complete.
• Add tests to cover changes as needed.
• Update documentation as needed.
• If there is a related Issue, mention it in the description.

If you're adding a new blockchain

• I have read the guidelines for adding a new blockchain.

[sergei-boiko-trustwallet]

Hi @xoloki-stacks, thank you for your contribution!
At the moment we do not merge new blockchains into WalletCore without a positive decision from our Business Development team.
Please create a new ticket, a request to add the blockchain to Trust Wallet:
https://support.trustwallet.com/en/support/tickets/new

[xoloki-stacks]

Hi @xoloki-stacks, thank you for your contribution! At the moment we do not merge new blockchains into WalletCore without a positive decision from our Business Development team. Please create a new ticket, a request to add the blockchain to Trust Wallet: https://support.trustwallet.com/en/support/tickets/new

Hi @sergei-boiko-trustwallet , I have a draft PR up to add the stacks blockchain STX coin to the TW assets repo here:

trustwallet/assets#35100

I'm waiting to get signoff on the logo asset, then our bizdev team will send the crypto payment and we can move forward with that and this PR.

[xoloki-stacks]

Hello again @sergei-boiko-trustwallet, new assets PR is up with the correct logos. Just waiting now for our business people to deal with the compensation payment.