Bridges: Setup chopstics test for asset transfer over bridge

[bkontur]

Relates to: #4793
Relates to: AcalaNetwork/chopsticks#741

Let's prepare an initial Chopsticks test (either standalone or PET-like) for Bridges that:

• Sets up the following environments:
  • Kusama, AssetHubKusama, BridgeHubKusama
  • Polkadot, AssetHubPolkadot, BridgeHubPolkadot
• Submits limited_reserve_transfer_assets(dest: AssetHubKusama, beneficiary: SomeAccountOnAssetHubKusama, assets: DOTs) on AssetHubPolkadot.
• Waits for and asserts the MessagesAccepted event on BridgeHubPolkadot.
• Waits for a finalized block containing MessagesAccepted.
• Includes a README or instructions on how to run it locally.
• This should be sufficient as an initial step.

When initial step is done, we will continue exploring ways to simulate or fake a "relay" to BridgeHubKusama, for example:

• Adding a root-like extrinsic that bypasses validation and directly manipulates storage to trigger message dispatch.
• Using substrate-relay (I am not sure if Chopsticks can integrate and run different standalone binaries?) / (This could be cool, as it would also allow us to test substrate-relay with live networks).
• Performing some TS/JS-based workaround to call submit_proofs extrinsics (finality, parachain, messages) similarly to how substrate-relay constructs them.
• Other?