Allow multiple values for --field options in wp plugin list

[priscillamc]

It's not possible to use multiple values in the --field option to customize wp plugin list.

For example, it would be helpful to be able to do the example command below:

wp plugin list --name=example-plugin1,example-plugin-2

This should only show the info for the plugins in the list, not all of the plugins.

[schlessera]

Correct, this is not possible. The main issue with a mechanism like that is the actual "user interface". If you use a comma for separating values, for example, you cannot have a comma in a value you're looking for anymore.

I wonder if the comma is actually useful in any of the fields here...?

[Sidsector9]

@schlessera how about limiting the --name argument to accept only plugin slugs? If we do that, we don't have to worry about commas. Maybe instead of --name, we can use --slug for semantic reasons.

[danielbachhuber]

Related #224