Added the new file for the Water Jug program in C++

[BipinSah]

Description

I have added the Water Jug Problem Code in C++

Checklist

• [x] I am making a proper pull request, not spam.
• [x] I've checked the issue list before deciding what to submit.

Related Issues or Pull Requests

https://github.com/raunakkumarsingh/Cpp_Code/issues/47

[BipinSah]

Please add my code under the Hacktoberfest label. Thank you! @raunakkumarsingh