Refactor data sources and feed model

IrisCompanion/iris/Models/Winner.swift

@@ -7,7 +7,7 @@
 
 import Foundation
 
-enum WinnerType: String, Codable, CaseIterable {
+enum FeedItemType: String, Codable, CaseIterable {
     case weatherAlert = "WEATHER_ALERT"
     case weatherWarning = "WEATHER_WARNING"
     case transit = "TRANSIT"
@@ -15,23 +15,6 @@ enum WinnerType: String, Codable, CaseIterable {
     case info = "INFO"
     case nowPlaying = "NOW_PLAYING"
     case currentWeather = "CURRENT_WEATHER"
+    case calendarEvent = "CALENDAR_EVENT"
     case allQuiet = "ALL_QUIET"
 }
-
-struct Winner: Codable, Equatable {
-    let id: String
-    let type: WinnerType
-    let title: String
-    let subtitle: String
-    let priority: Double
-    let ttlSec: Int
-
-    enum CodingKeys: String, CodingKey {
-        case id
-        case type
-        case title
-        case subtitle
-        case priority
-        case ttlSec = "ttl_sec"
-    }
-}