Add maven support and also ignore target directory

[A-Joshi]

Issue #2 Small PR to add in a pom.xml to make it easier to build with maven.

[thesurlydev]

@A-Joshi Thanks for the contribution.

Your change doesn't successfully build the project. Consider using https://start.spring.io with OpenAI dependency as a starting point for adding Maven.

[A-Joshi]

I fixed it - I usually keep specific repositories needed (like Spring Milestones in this case) in my settings.xml. I have moved it to the pom file.

[A-Joshi]

Closd by mistake