Add cmd PkgREPL command

[frankier]

This is useful because the run PkgREPL command was picking up my system mamba even though MicroMamba was in use. This is some type of a PATH issue probably, but at any rate, this approach which will reliably target the correct executable seems like a useful addition since it can be more robust.

[codecov]

Codecov Report

Merging #104 (71bd5ab) into main (4d48894) will decrease coverage by 0.65%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #104      +/-   ##
==========================================
- Coverage   92.82%   92.18%   -0.65%     
==========================================
  Files           8        8              
  Lines         864      870       +6     
==========================================
  Hits          802      802              
- Misses         62       68       +6     

Files Changed	Coverage Δ
src/PkgREPL.jl	87.50% <0.00%> (-12.50%)	⬇️

[cjdoris]

This is so similar to conda run that maybe they should be merged? That is, change conda run so that if the first arg is conda (or mamba or micromamba?) then run whatever CondaPkg runs?

[frankier]

That makes sense. So to confirm the plan would be:

• Do the same as conda cmd procedure when any of these match
• Don't do it when they are quoted
• Document this in the docstring of conda run

I'll modify this PR with these changes soonish

[frankier]

Done

[cjdoris]

Thanks for the PR - I came to review it and had some comments, but in the end decided it would be quickest to just implement my ideas directly. I went with a simpler version, which just checks if the first arg is "conda" regardless of quoting. I didn't think the extra complexity was worth it for what is really just a convenience function. It's released now.