Add Sort functionality

[prasunanand]

Implement the following sort algorithms:

• Quicksort
• Heapsort
• Mergesort
• Stablesort

[ASCcool]

Hi @prasunanand, I am interested to work towards this issue. Would be great if there was some knowledge transfer regarding this.

[prasunanand]

This is an easy to build functionality. Can you write the above mentioned sort algos in C? I can then help you out.

[ASCcool]

Yes @prasunanand definitely. Kindly let me know how shall I proceed.

[prasunanand]

Start working on a PR with C code. Google for tutorials on Ruby C bindings.

[ASCcool]

Sure, I will create the PR to be merged ASAP. It should be to the ext directory, right?

[prasunanand]

yeah