[FEATURE] Add support for Java projects

[anistark]

Add support for java projects using Maven, Gradle, etc.

Checklist and things to note after Java projects support:

• Separate cmd param for java --java
• Check auto-detection language as well if it's able to identify java projects well.
• Tests
• Readme update
• Contributing guide update
• Justfile update (if needed)

Prerequisites

• You should know Java.
• You should have a couple of Java projects to check various use-cases with.
• If there are any other way for Java project than Maven, Gradle, should support that as well.