Implement Longest common subsequence - Dynamic Programming

[ankitjena]

• You are allowed to implement the algorithm in any language.
• Multiple submissions from a single language are not allowed.
• Solutions are to be submitted in this directory .
• To make a submission in python. You have to create a sub-folder python inside the directory and save your file in it.

[Anshika-G]

done here- https://github.com/zairza-cetb/hacktoberfest-2018/pull/18/commits/188b068b1dfb75d69019b59a852a5c197564b50e