add draft views for sets of exercises

WorkoutsPlus/Exercise/Exercise.swift

@@ -9,10 +9,11 @@ import Foundation
 import SwiftData
 
 @Model
-final class Exercise {
+final class Exercise: Identifiable {
+		var id = UUID()
 		static var systemImage = "figure.run"
 		@Attribute(.unique) var name: String
-		var metric: String = "reps"
+  //		var metric: String = "reps"
 		//		var exerciseDescription: ExerciseDescription?
 		
 		var timestamp: Date = Date.now
@@ -20,7 +21,9 @@ final class Exercise {
 		init(_ name: String = "") {
 				self.name = name
 		}
-		
+}
+
+extension Exercise {
 		static let sampleData: [Exercise] = [
 				Exercise("Dips"),
 				Exercise("Chin-ups"),