This pull request integrates the snowbridge-pallet-outbound-queue-v2 and
its dependencies into the DataHaven runtime. This pallet is responsible
for handling the submission, processing, and commitment of outbound
messages destined for the Ethereum network via the Snowbridge bridge
(v2).
### Key Changes
#### Added New Pallets
- **snowbridge-pallet-outbound-queue-v2**: The core pallet for managing
the outbound message lifecycle.
- **pallet-message-queue**: Introduced to handle the queuing and
processing of messages.
#### Added Crates to Datahaven codebase
- snowbridge-merkle-tree
- bridge-hub-common
- snowbridge-outbound-queue-v2-runtime-api
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Co-authored-by: Facundo Farall <37149322+ffarall@users.noreply.github.com>
