Creating a variant of the RandomTextGenerator class that utilizes a cache to obtain a balance between space and time efficiency

[yashugrankar]

I was thinking of creating a variant of the generator that uses a cache to store the most frequently occurring word sets, and their corresponding list of following words. This approach would not take as much space as creating the entire word-map, while being much faster than scanning through the entire text each time. I'd like to work on this if it sounds good. Let me know what you think.

[JingMa87]

@yashugrankar Sounds good, you can start working on this. If you're using a formal algorithm, can you also mention it in the class comment? For example: Least Frequently Used (LFU). It's highly preferred if you maintain the coding style of this project. 😄