Implement dedicated (de)serializer for messages

[mpkorstanje]

🤔 What's changed?

This extracts the common Jackson settings copy-pasted across various Cucumber modules into its own module for reuse.

⚡️ What's your motivation?

To read and write messages the Jackson class is copy-pasted numerous times. This module helps reduce that duplication.

• https://github.com/cucumber/cucumber-jvm/blob/2ada43d4f1ebab14a0b7ca5b4e148d4335f42457/cucumber-core/src/main/java/io/cucumber/core/plugin/Jackson.java#L16
• https://github.com/cucumber/cucumber-eclipse/blob/21e76c1b89a235e767b6e6f84aea110491c5d03d/io.cucumber.eclipse.jackson/src/io/cucumber/eclipse/jackson/JacksonEnvelopeReader.java#L29
• https://github.com/cucumber/junit-xml-formatter/blob/c7e3e198e7ca51dd7ebd8c0e2c8b7704feaf4db4/java/src/test/java/io/cucumber/junitxmlformatter/Jackson.java#L14
• https://github.com/cucumber/testng-xml-formatter/blob/a84b8fe684aaf7772e0da62ee047cf2c4cf87df2/java/src/test/java/io/cucumber/testngxmlformatter/Jackson.java#L14
• https://github.com/cucumber/gherkin/blob/08e418cb697768bf9e377a0b280b9c491bea3358/java/src/test/java/io/cucumber/gherkin/Jackson.java#L15
• https://github.com/cucumber/html-formatter/blob/414eb813e366ef8112fba051e50c01548963ab8c/java/src/test/java/io/cucumber/htmlformatter/Jackson.java#L14
• https://github.com/cucumber/teamcity-formatter/blob/69b229bda39b36b261d9787fbf699041987e1199/java/src/test/java/io/cucumber/teamcityformatter/Jackson.java#L16
• https://github.com/cucumber/pretty-formatter/blob/bc795b55f30a2bfd9b7c027ee99809a6d92ebf08/java/src/test/java/io/cucumber/prettyformatter/Jackson.java#L18

🏷️ What kind of change is this?

• ⚡ New feature (non-breaking change which adds new behaviour)

📋 Checklist:

• I agree to respect and uphold the Cucumber Community Code of Conduct
• I've changed the behaviour of the code
  • I have added/updated tests to cover my changes.
• My change requires a change to the documentation.
  • I have updated the documentation accordingly.
• Users should know about my change
  • I have added an entry to the "Unreleased" section of the CHANGELOG, linking to this pull request.