* Add API endpoints for connections, sources, and destinations * Updating tests * Tests for source and destination handlers * Reformat code * Update airbyte-server/src/main/java/io/airbyte/server/handlers/helpers/ConnectionMatcher.java Co-authored-by: LiRen Tu <tuliren@gmail.com> * Adding tests * Format code Co-authored-by: LiRen Tu <tuliren@gmail.com>