Add verbose flag to commands that execute plugin callbacks

**Is your feature request related to a problem? Please describe.**
Sometimes hard to known what a plugin is doing. Sometimes the `list-all` or `install` command hangs and it isn't possible to see what is going on.

**Describe the solution you'd like**
Add a verbose mode to commands that execute plugin callbacks, `list-all`, `install`, etc...

**Describe similar asdf features and why they are not sufficient**
Plugins sometimes log messages to STDOUT, but the output isn't always very consistent and some plugins do not write out anything.

**Describe workarounds you've considered**
No known workarounds. Looking at the running processes doesn't really help the user understand what is going on.

**Additional context**
Created based on #526

Start by tracing the list-all and install command entry points to the plugin callbacks they execute. Review how those commands currently report output, then define consistent verbose progress reporting for callback execution; done means users can see what is happening when these commands appear to hang.

Written by the indexing model from the issue text.