bootstrap contract prototype (WIP)

[tallaxes]

What type of PR is this?

What this PR does / why we need it:

Prototype of the bootstrap contract (protobuf-driven)

Which issue(s) this PR fixes:

Fixes #

Requirements:

• [ ] uses conventional commit messages
• [ ] includes documentation
• [ ] adds unit tests
• [ ] tested upgrade from previous version

Special notes for your reviewer:

Release note:

none