[Feature] Installing only dev-dependencies

[Stefanuk12]

I usually include all of my tooling inside of the dev-dependencies. In my CI/CD, I would use pesde install --dev to install only those dependencies to lint, format, and build my code. However, this isn't possible at the moment.

[daimond113]

Thanks for the issue! The idea doesn't seem bad to me. I'll see if I'll be able to include it in 0.6, and if not it'll be included in a later release of 0.6.