Add route files, show overview

CHDataManagement/Workouts/RouteOverview.swift

@@ -0,0 +1,20 @@
+import Foundation
+
+struct RouteOverview {
+
+    /// The total active energy in kcal
+    let energy: Double
+
+    /// The total distance of the track in meters
+    let distance: Double
+
+    /// The total duration in seconds
+    let duration: TimeInterval
+
+    /// The total ascended altitude in meters
+    let ascendedElevation: Double
+
+    let start: Date?
+
+    let end: Date?
+}