Added filtering options to dining menu view

There is now a filter button by the search bar in the menu view for locations! This opens a menu that allows you to filter by diets and to filter out any allergens that you need to avoid. These options are all written to UserDefaults, allowing you to set your options once and have them persist across menus and sessions.
Also started on some refactors, these will be furthered in a later commit.

RIT Dining/Data/Types/FoodTruckTypes.swift

@@ -7,7 +7,7 @@
 
 import Foundation
 
-// A weekend food trucks even representing when it's happening and what food trucks will be there.
+/// A weekend food trucks even representing when it's happening and what food trucks will be there.
 struct FoodTruckEvent: Hashable {
     let date: Date
     let openTime: Date

RIT Dining/Data/Types/TigerCenterTypes.swift

@@ -7,12 +7,11 @@
 
 import Foundation
 
-// I'll be honest, I am NOT good at representing other people's JSON in my code. This kinda sucks but it gets the job done and can
-// be improved later when I feel like it.
+/// Struct to parse the response data from the TigerCenter API when getting the information for a dining location.
 struct DiningLocationParser: Decodable {
-    // An individual "event", which is just an open period for the location.
+    /// An individual "event", which is just an open period for the location.
     struct Event: Decodable {
-        // Hour exceptions for the given event.
+        /// Hour exceptions for the given event.
         struct HoursException: Decodable {
             let id: Int
             let name: String
@@ -27,14 +26,13 @@ struct DiningLocationParser: Decodable {
         let daysOfWeek: [String]
         let exceptions: [HoursException]?
     }
-    // An individual "menu", which can be either a daily special item or a visitng chef. Description needs to be optional because
-    // visiting chefs have descriptions but specials do not.
+    /// An individual "menu", which can be either a daily special item or a visitng chef. Description needs to be optional because visiting chefs have descriptions but specials do not.
     struct Menu: Decodable {
         let name: String
         let description: String?
         let category: String
     }
-    // Other basic information to read from a location's JSON that we'll need later.
+    /// Other basic information to read from a location's JSON that we'll need later.
     let id: Int
     let mdoId: Int
     let name: String
@@ -45,12 +43,12 @@ struct DiningLocationParser: Decodable {
     let menus: [Menu]
 }
 
-// Struct that probably doesn't need to exist but this made parsing the list of location responses easy.
+/// Struct that probably doesn't need to exist but this made parsing the list of location responses easy.
 struct DiningLocationsParser: Decodable {
     let locations: [DiningLocationParser]
 }
 
-// Enum to represent the four possible states a given location can be in.
+/// Enum to represent the four possible states a given location can be in.
 enum OpenStatus {
     case open
     case closed
@@ -58,13 +56,13 @@ enum OpenStatus {
     case closingSoon
 }
 
-// An individual open period for a location.
+/// An individual open period for a location.
 struct DiningTimes: Equatable, Hashable {
     var openTime: Date
     var closeTime: Date
 }
 
-// Enum to represent the five possible states a visiting chef can be in.
+/// Enum to represent the five possible states a visiting chef can be in.
 enum VisitingChefStatus {
     case hereNow
     case gone
@@ -73,7 +71,7 @@ enum VisitingChefStatus {
     case leavingSoon
 }
 
-// A visiting chef present at a location.
+/// A visiting chef present at a location.
 struct VisitingChef: Equatable, Hashable {
     let name: String
     let description: String
@@ -82,19 +80,19 @@ struct VisitingChef: Equatable, Hashable {
     var status: VisitingChefStatus
 }
 
-// A daily special at a location.
+/// A daily special at a location.
 struct DailySpecial: Equatable, Hashable {
     let name: String
     let type: String
 }
 
-// The IDs required to get the menu for a location from FD MealPlanner. Only present if the location appears in the map.
+/// The IDs required to get the menu for a location from FD MealPlanner. Only present if the location appears in the map.
 struct FDMPIds: Hashable {
     let locationId: Int
     let accountId: Int
 }
 
-// The basic information about a dining location needed to display it in the app after parsing is finished.
+/// The basic information about a dining location needed to display it in the app after parsing is finished.
 struct DiningLocation: Identifiable, Hashable {
     let id: Int
     let mdoId: Int
@@ -110,9 +108,9 @@ struct DiningLocation: Identifiable, Hashable {
     let dailySpecials: [DailySpecial]?
 }
 
-// Parser to read the occupancy data for a location.
+/// Parser to read the occupancy data for a location.
 struct DiningOccupancyParser: Decodable {
-    // Represents a per-hour occupancy rating.
+    /// Represents a per-hour occupancy rating.
     struct HourlyOccupancy: Decodable {
         let hour: Int
         let today: Int
@@ -130,7 +128,7 @@ struct DiningOccupancyParser: Decodable {
     let intra_loc_hours: [HourlyOccupancy]
 }
 
-// Struct used to represent a day and its hours as strings. Type used for the hours of today and the next 6 days used in DetailView.
+/// Struct used to represent a day and its hours as strings. Type used for the hours of today and the next 6 days used in DetailView.
 struct WeeklyHours: Hashable {
     let day: String
     let date: Date