feat: Money pattern (#3109)

* Money pattern

the implementation of the money patter and the tests along with the read me file

* Update money/README.md

Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>

* added App file anf modified README file and pom.xml file

* modified README and pom.xml

* added comments

* Added a test for App.java

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Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>