Shreyans

Results 3 issues of Shreyans

Implemented Bogo Sort (Sorting algorithm with one of the worst time complexity).

It adds SetTheoretic concept for functions- union, intersection, difference, symmetric_difference. Closes https://github.com/boostorg/hana/issues/357

At the moment, there are no concepts written for set-theoretic functions, due to which minor errors lengthens up to multiple pages unnecessarily.