-u -s arguments ignore .tfswitch.toml bin config

[cdobbyn]

Is your feature request related to a problem? Please describe.
When using either -u or -s arguments the value of "bin" in the .tfswitch.toml config is ignored.

Describe the solution you'd like
Unless presenting -b this should be placed in the location specified by .tfswtich.toml.

Describe alternatives you've considered
I used -b to get around my immediate issue.

Additional context
Add any other context or screenshots about the feature request here.

[jukie]

Thanks for finding this! The problem is how the binPath is being fed into the functions. My PR should fix it.