Feature Request: Automated env setup (easy) #77
Description
The goal is to make it smoother and more convenient for new users to run abcoder.
Instead of having the user manually setup dependencies according to the docs,
we should detect missing dependencies and try to install them automatically.
Describe the solution you'd like
When running abcoder parse LANG, dependencies should be automatically detected, and installed if missing (under user consent).
Additional context
The TypeScript parser has already done this.
#76 (comment)