MDL-45938 tool_monitor: Add support for editing/creating a rule
MDL-46110 tool_monitor: Create renderable and renderer for manage rules page
MDL-46110 tool_monitor: Display a rule managment interface
MDL-46130 tool_monitor: Handle rule managment
MDL-46241 tool_monitor: Create a class that represents a subscription instance
MDL-46111 tool_monitor: Add a renderer for the subscription page
MDL-46111 tool_monitor: Add renderables for the subscription page
MDL-46111 tool_monitor: Update subscription manager class to support the subs renderable
MDL-46111 tool_monitor: Add a UI page to manage subscriptions