Move OPNsense services functions to REST API

[Snuffy2]

• Will create more detailed service switches than before. For example, I use udpbroadcastrelay. Previously, there would be a single switch to turn on/off the entire service. Now there will be a separate switch for each entry.
  • The Service Name is more broad and the Service ID is specific to a single entry in a service (when applicable). Both will work in the HA Action (fka. Service) Calls
  • Shows the Service Name and Service ID as attributes of the Service Switches.
• Does not create switches for services that are unable to be stopped. These are listed as locked. ex. webgui, sysctl
• Renames the field property to prop_name to not conflict with the property decorator
• Fixes typo of unqiue to unique

Should be released with #204