sqlc

[snosratiershad]

This PR is still draft
Based on discussion in #17 I'm moving db operations from jet to sqlc
TODO:

• command_accounts queries
• command_admin queries
• command_privacy queries
• command_lookup queries
• command_accounts implementation
• command_admin implementation
• command_privacy implementation
• command_lookup implementation
• cleaner integration
• test full functionality

[skariel]

I should have started this project using sqlc... just wanted to learn/try a new thing. I guess, I learn the hard way

[snosratiershad]

@skariel, refactor phase is completed and I'm going to check commands functionality one by one. You can already start reviewing from now.