Additional Hooks

[shawnhooper]

(I have a PR in progress for this, but wanted to open an issue to keep you in the loop.)

Adding hooks to various actions related to this plugin to allow for future expansion. The ones I could think of are actions for:

• A user's account is disabled
• A user's account is re-enabled
• A disabled user attempts to login

[jaredatch]

👍 to this idea - logical and could certainly be useful in some scenrios