Make not require linux for socketcan

[jr1221]

Changes

• Fixups docker by adding dockerignore to save space and fixing ci syntax
• CI rust --all to pickup the macro crates
• Remove old protobuf stuff from readme
• Make socketcan an optional dependency

Notes

I originally tried to reorganize the repository for no reason, hence the feature/remove-linux-depends2. I did not propose it because 1. it didnt work well and 2. it was unecessarily complicated.

Test Cases

• Windows users can cargo run --bin simulate. I need someone to do this lol my Windows doesnt have enough space for rust.

To Do

Checklist

It can be helpful to check the Checks and Files changed tabs.
Please reach out to your Project Lead if anything is unclear.
Please request reviewers and ping on slack only after you've gone through this whole checklist.

• No merge conflicts
• All checks passing
• Remove any non-applicable sections of this template
• Assign the PR to yourself
• Request reviewers & ping on Slack
• PR is linked to the ticket (fill in the closes line below)

Closes #71

[harrison-e]

this is awesome

[harrison-e]

baller