Summary of the new feature / enhancement

Hello

Having play with predictors I feel the need for a new feature.

It seems actually impossible to get the location of the shell calling the predictor, which is very limiting considering how useful it could be.
As an example, if I had the location, I could easily create a predictor suggesting the local git branches after git checkout

Proposed technical implementation details (optional)

IMO this value should be present in the PredictionClient, or at least I should have access to the PID of the shell. (client.Name only return PSReadLine)

How exactly do that ? No idea ^^, But I think it would be a change somewhere in PSReadLine