Update Bindings

• Update Update Bindings.xcframework
  • client@2932108d
• Add DHKey model.
• Add GroupMember model.
• Implement a workaround for huge numbers in JSON (convert them to strings). This is just a workaround that eventually has to be properly addressed. Currently, only decoding of JSONs containing huge numbers is supported.
• Update GroupGetMembership function wrapper to use GroupMember model.