[FLINK-18124] Add documentation for new FLIP-27 source interface

• Type: Sub-task
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 1.11.0
• Component/s: Documentation
• Assignee: Stephan Ewen
• Reporter: Stephan Ewen
• Created: 04/Jun/20 11:45
• Updated: 09/Jun/20 18:58
• Resolved: 09/Jun/20 18:58

Description

The documentation should be under {{Application Development / DataStream API / Data Sources }}.

We need to add sections about

• Data Source Concepts
• Data Source API
• Connector Base (Split Reader Library)
• Event Time and Watermarks