FerretDB Get-Started Java

This is a fork of https://github.com/mongodb-developer/get-started-java, simplified to run with FerretDB.

Execution Steps

1. cd java
2. Create the JAR file with dependencies: mvn clean compile assembly:single
3. To run with strict Stable API: java -jar target/java-example-1.0-SNAPSHOT-jar-with-dependencies.jar Connection -uri "mongodb://localhost:27017/" -strict
4. To run with PLAIN authentication pass PLAIN to the authMechanism URI option: java -jar target/java-example-1.0-SNAPSHOT-jar-with-dependencies.jar Connection -uri "mongodb://username:password@localhost:27017/?authMechanism=PLAIN"