Add ability to stop user from refreshing keys

Problem/Motivation

Sometimes plugin may want to prevent a user from refreshing their own keys. A plugin should be able to provide a way to disable key refreshing in the default or overridden form, as well as method protection if the plugin has key refresh disabled.

Proposed resolution

• Add a plugin configuration element and method to handle key refresh states.
• Add a check to the key refresh method to see if the plugin has key refresh enabled first.