4.0.0

• Support RxSwift 6
• Prefix module typaliases with RxGesture to avoid conflicts with SwiftUI (or any other module):
  • View→ RxGestureView
  • GestureRecognizer→ RxGestureRecognizer
  • Point→ RxGesturePoint
  • etc...
• Enhance custom gesture recognizers (ForceTouchGestureRecognizer and TouchDownGestureRecognizer)
• Enhance example app