refactor into smaller units

DieHammer/Views/Elements/DiePoolView.swift

@@ -0,0 +1,21 @@
+//
+//  DiePoolView.swift
+//  Bunch O' Dice
+//
+
+import SwiftUI
+
+struct DiePoolView: View {
+    var body: some View {
+        HStack(spacing: 0) {
+            ForEach(Dice.DiceType.allCases, id: \.rawValue) { i in
+                DieView(whichDie: i)
+            }
+        }
+    }
+}
+
+#Preview {
+    DiePoolView()
+        .environmentObject(Roll())
+}