Add content to `proto`, `sdk` and `ConnectionsTable` packages

[AlanSl]

In this PR:

• [x] Add linting and update general repo settings
• [x] Add protobuf definition and scripts
• [x] Restructure so that protobuf-related helpers and utilities are shared from one place
• [x] Add data mocking scripts, sharing genearal utilities where possible
• [x] Add tests for protobuf helpers, parsing and mocking & fix any issues
• [x] Separate ConnectionsTable from general SDK logic
• [x] Separate generic storybook config so it can be shared from SDK package

In next PR

• [ ] Improve SDK structure to have a clearer API
  • Data restructuring in hooks like useTabularData for columns and rows, useStackedData for data like the timeline, etc
  • Sort and filter state handled in those hooks
• [ ] Add tests to SDK & fix any issues
• [ ] Add documentation to SDK
• [ ] Add basic documentation to ConnectionsTable package
• [ ] Add basic general top level documentation
• [ ] Add documentation to protobuf package

This PR is getting very big so I might split the documentation out into another PR

[AlanSl]

@thekemkid This is a good point to review this PR I think, see the first comment for roadmap of what I'm working on in the next one [edit - added one script, not planning on more in this PR]

[AlanSl]

@thekemkid Thanks that's fine by me