Provide a way to enable auto-loading of editor command modules

It would be nice if there was a way for the user to opt in to the auto-loading of any PowerShell Gallery modules they've installed which include editor commands written with the new extensibilty model. The user would add a cmdlet call to their chosen editor's profile which invokes this module auto-loading process. It might look something like this:

Import-EditorCommandModules [-Exclude <String[]> [-Repository <String[]>]`

The -Exclude parameter would take a list of module names which should be excluded from the auto-loading process. The -Repository parameter would restrict auto module loading to only the modules which were installed from the specified repositories.

When invoked, this command would use Get-InstalledModule to find all modules and then filter them down to the specified repositories. It'd then filter them down even further to only those with a conventional tag called EditorCommand. This would allow module authors to indicate that their module contains editor commands which can be auto-loaded.

Start with the proposed Import-EditorCommandModules entry point and the editor profile where users would invoke it. Review how Get-InstalledModule exposes installed modules and repositories, then define filtering for -Exclude, -Repository, and the EditorCommand tag. Done means opted-in loading finds only eligible modules and respects both filters.