New search API endpoints for connections, sources, and destinations

[mmolimar]

What

This PR adds a new endpoint to search connections, sources, and destinations. The search is very flexible and can include 0 or more values in the payload including values from the connections, sources, and/or destinations (also look for values in the connection configuration).

How

Update the YAML file containing the endpoints with the specification and the ConnectionsHandler, SourceHandler, and DestinationsHandler. Also, I've added a new Matcher interface in the io.airbyte.server.handlers.helpers package.

Recommended reading order

1. config.yml
2. ConnectionsHandler.java
3. SourceHandler.java
4. DestinationHandler.java
5. ConfigurationApi.java

Pre-merge Checklist

Expand the relevant checklist and delete the others.

New Connector

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• Code reviews completed
• Documentation updated
  • Connector's README.md
  • Connector's bootstrap.md. See description and examples
  • docs/SUMMARY.md
  • docs/integrations/<source or destination>/<name>.md including changelog. See changelog example
  • docs/integrations/README.md
  • airbyte-integrations/builds.md
• PR name follows PR naming conventions
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• Create a non-forked branch based on this PR and test the below items on it
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Updating a connector

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• Secrets in the connector's spec are annotated with airbyte_secret
• Unit & integration tests added and passing. Community members, please provide proof of success locally e.g: screenshot or copy-paste unit, integration, and acceptance test output. To run acceptance tests for a Python connector, follow instructions in the README. For java connectors run ./gradlew :airbyte-integrations:connectors:<name>:integrationTest.
• Code reviews completed
• Documentation updated
  • Connector's README.md
  • Connector's bootstrap.md. See description and examples
  • Changelog updated in docs/integrations/<source or destination>/<name>.md including changelog. See changelog example
• PR name follows PR naming conventions
• Connector version bumped like described here

Airbyter

If this is a community PR, the Airbyte engineer reviewing this PR is responsible for the below items.

• Create a non-forked branch based on this PR and test the below items on it
• Build is successful
• Credentials added to Github CI. Instructions.
• /test connector=connectors/<name> command is passing.
• New Connector version released on Dockerhub by running the /publish command described here

Connector Generator

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• Documentation which references the generator is updated as needed.

[CLAassistant]

All committers have signed the CLA.

[marcosmarxm]

Mario thanks for your contribution! Can you run ./gradlew format?

[mmolimar]

Done! @marcosmarxm

[tuliren]

This is really nice! Thank you. I have a few nitpicks, and a comment about making the unit tests more thorough. But if you don't have bandwidth to make those changes, it's also fine. We an do it in a follow up PR.

[tuliren]

🎉