Structure the storage of mods on the controller into into a reusable
component in preparation for the host using the same kind of mod storage
to retrieve and cache the mods it needs to run mod packs on instances.
Use the JSON data class pattern for User, Role, and PlayerStats and move
them into lib/src/data. This means that User is purely data now and
can't reference role objects directly. To make it possible easily check
permissions attached to roles and store data only visible on the
controller on user objects a ControllerUser type is introduced which is
linked with the UserManager and can therefore reference role objects
directly.
Resolves#525.
Resolve circular dependency of controller depending on web_ui and web_ui
depending on controller by moving the type from controller that was used
in web_ui to lib.
Remove extra whitespace, use more consistent spacing, add missing
semicolons, using dangling commas, break up long lines, consistent
multiline operator placement, add missing JSDoc strings and so on.
Hornwitser