Add Maven Wrapper to eliminate global Maven dependency

[Anmol202005]

Build failures occur when Maven version mismatches between local environments and project requirements.

Todo:
Add Maven Wrapper to the repository:

• Include mvnw, mvnw.cmd, and .mvn/wrapper/ directory
• Update CI/CD pipelines to use ./mvnw instead of mvn
• Lock Maven version in .mvn/wrapper/maven-wrapper.properties

[romani]

fixed