Realm Connection - Update Schemas to Mirror Database

[xavjones8]

Acceptance Criteria:

1. For each model we have, refactor the class name to have Display added to the end (eg. SchoolDisplay). Be sure to use Android Studio Rename Refactoring to rename all variables in the project.
   We want to do this so that we can play with the database schemas without affecting the front-end.
   Example:

data class ClubDisplay(
    var _id: UUID = UUID.randomUUID(),
    var color: Long = 0,
    var events: List<EventDTO> = listOf<EventDisplay>(),
    var fullName: String = "",
    var imageUrl: String = "",
    var members: List<UserDTO> = listOf<UserDisplay>(),
    var posts: List<PostDTO> = listOf<PostDisplay>(),
    var school: SchoolDTO? = null,
    var shortName: String = ""
)

2. Next, add a new class for each model in the database, using the schema MongoDB provides like so:
   .
3. Be sure the app runs, and check through existing compostables to ensure no degradation in function.