Initial PR for Titanic Model

[arcAman07]

Initially as I was told, this PR contains the function which fetches the data from the MLDatasets Library, divides them into training and testing set so that it can be used to create the ML model using Flux.jl

Things to be added: Updated ReadMe, Toml file consisting of the dependency and updating docs.
If this is right, will add rest of the things along with Flux implementation of the Titanic dataset

[darsnack]

While there is nothing wrong with what's already in the PR, this will need all the "things to add" like a README, toml, complete training script, etc. before it is ready for review.

You do not need to close this PR, just keep pushing more commits.

[arcAman07]

Cool will keep adding the commits, was told the initial PR will be for just processing the data which will be ready to use by the Flux library. Thought of adding rest of the things after this was approved.
Will add README,toml and the training scipt too.