Improvements for dynamic plugins with commands

[agerard-godaddy]

Summary

Improvements to using commands with dynamic plugins, providing better debugging and error reporting.

Changelog

@gasket/plugin-command

• Invoke commands lifecycles during prepare
• Always register the command called; not filtered by what's been registered

@gasket/plugin-dynamic-plugins

• Set timing before commands plugins to allow dynamic plugins to register commands
• Add 'deduped' trace for improved lifecycle debugging
• Invoke prepare lifecycle of dynamic plugins

Test Plan

Testing in a local app