Option to Block accessory from HomeKit
### Current Situation

The Ring plugin is a major plugin. But the developer has no way to prevent fake devices from entering HomeKit! For example: each Ring light bulbs exposes a useless fake motion sensor to HomeKit. The developer did update the plugin to remove them, but now Ring broke that ability by altering the accessory data with no way for him to distinguish accessory types. We need an accessory blockade option at the Homebridge handling level before they get to HomeKit. Also, we need to be able to alter certain device types, such as the ability to expose switchable bulbs to HomeKit as Outlets.

### Proposed Change

Accessories display in the Homebridge UI but the lack a “Hide from HomeKit” option.

Homebridge also lacks an ability to alter the device exposure type (eg. Switchable light exposed to HomeKit under the Outlet catagory).

### Additional Context

A plugin should only be responsible for bridging accessories over to Homebridge. Homebridge should in turn be responsible after that for exposing or blocking each device from itself or from the Homekit Home it serves.