ShellSort in C++ - Githubissues

This PR implements the code for Shell Sort in C++.

I have read the contributing guidelines in CONTRIBUTING.md and have ensured the following:

[X] My code is placed in the required directory as outlined in CONTRIBUTING.md
[X] My code file is named according to CONTRIBUTING.md
[X] Variables, classes, functions etc. follow camel case as outlined in CONTRIBUTING.md
[X] My code hasn't been implemented or claimed by someone else and I have checked the present issues and PRs for the same
[X] My code is well commented
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deutranium / Algorithms