Added Binary Search in Java

[ghost]

this will help people understand when to use binary search and how to use it

[DhairyaBahl]

@UjjwalSinghDetexter It would be nice if you can add screenshots for the submission of your code on some online coding platform like leetcode, gfg or interview bit ! and then share the screen shot for same over here in the comments !

You should also try First Bad Version on leetcode as the application of the binary search and add the code for the same in this PR.

Thanks and all the best !