4.4.0

• Core
  • Bump browser-switch version to 2.0.2
• SamsungPay
  • Add SamsungPayClient
  • Add SamsungPayClient#goToUpdatePage()
  • Add SamsungPayClient#activateSamsungPay()
  • Add SamsungPayClient#isReadyToPay()
  • Add SamsungPayClient#startSamsungPay()
  • Add SamsungPayClient#buildCustomSheetPaymentInfo()
  • Add SamsungPayClient#updateCustomSheet()