Add ResettableGestureRule implementation

Sources/OpenSwiftUICore/Event/Gesture/ResettableGestureRule.swift

@@ -0,0 +1,41 @@
+//
+//  ResettableGestureRule.swift
+//  OpenSwiftUICore
+//
+//  Status: Complete
+
+package import OpenGraphShims
+
+// MARK: - ResettableGestureRule [6.5.4]
+
+package protocol ResettableGestureRule: StatefulRule {
+    associatedtype PhaseValue = Void
+    var phaseValue: GesturePhase<PhaseValue> { get }
+    var resetSeed: UInt32 { get }
+    var lastResetSeed: UInt32 { get set }
+    mutating func resetPhase()
+}
+
+extension ResettableGestureRule {
+    package mutating func resetPhase() {}
+
+    package mutating func resetIfNeeded() -> Bool {
+        defer { lastResetSeed = resetSeed }
+        guard lastResetSeed == resetSeed else {
+            resetPhase()
+            return true
+        }
+        guard hasValue else {
+            return true
+        }
+        return !phaseValue.isTerminal
+    }
+}
+
+extension ResettableGestureRule where Value == GesturePhase<PhaseValue> {
+    package var phaseValue: GesturePhase<PhaseValue> { value }
+}
+
+extension ResettableGestureRule where PhaseValue == Value.PhaseValue, Value: DebuggableGesturePhase {
+    package var phaseValue: GesturePhase<PhaseValue> { value.phase }
+}