Add various api base urls for Reader API

Account/Sources/Account/ReaderAPI/ReaderAPICaller.swift

@@ -63,14 +63,21 @@ final class ReaderAPICaller: NSObject {
 	
 	private var APIBaseURL: URL? {
 		get {
+			switch variant {
+			case .inoreader:
+				return URL(string: "https://www.inoreader.com")
+			case .bazQux:
+				return URL(string: "https://bazqux.com")
+			case .theOldReader:
+				return URL(string: "https://theoldreader.com")
+			case .generic:
 				guard let accountMetadata = accountMetadata else {
 					return nil
 				}
-	
 				return accountMetadata.endpointURL
 			}
 		}
-	
+	}
 	
 	init(transport: Transport) {
 		super.init()