Tags are not respected in powershell

[SomeoneRandom42]

When using gr from a powershell command line everything works fine except tags are not respected. Every command will run on every single tagged repository so you can't categorize anything further than "all".

I think this is the only thing needed to fully support powershell and would be nice to have so people don't need a bash command line and a powershell command line if they work in powershell mainly.