[sovereign] Create outgoing bridge data with type

[mariusmihaic]

Reasoning behind the pull request

• Prepare node to create outgoing bridge data with type and add necessary interface definitions and setup for change validator set

Proposed changes

Testing procedure

Pre-requisites

Based on the Contributing Guidelines the PR author and the reviewers must check the following requirements are met:

• was the PR targeted to the correct branch?
• if this is a larger feature that probably needs more than one PR, is there a feat branch created?
• if this is a feat branch merging, do all satellite projects have a proper tag inside go.mod?