XEP-0386: Bind 2

[lnjX]

https://xmpp.org/extensions/xep-0386.html

• [x] Bind2/Core: Resource binding
  • [x] Implement parsing of Bind 2 elements (without bind2 extensions)
  • [x] OutgoingClient/Sasl2Manager: Use bind2 resource binding
  • [x] Test resource binding with real-world server (ejabberd)
  • [x] Config: Add option for custom resource tag
• [x] Bind2/Stream Management: XEP-0198: Stream Management
  • [x] parsing of bind2 sm extensions
  • [x] parsing of sasl2 sm extensions
  • [x] enabling of stream management via bind2
  • [x] stream resumption through sasl2
  • [x] real world resumption test (done; found out that old implementation wasn't working, now both work)
• [x] Bind2/Carbons: XEP-0280: Message Carbons
  • [x] Enable carbons (interaction with CarbonManagerV2) via bind2
• [x] Bind2/CSI: XEP-0352: Client State Indication
  • [x] create internal CsiManager in OutgoingClient
  • [x] Set initial CSI state via bind2

Pull-request:

• 622