Added c code for binary search

[prince8809]

For short term contributors: we understand that getting your commits well
defined like we require is a hard task and takes some learning. If you
look to help without wanting to contribute long term there's no need
for you to learn this. Just drop us a message and we'll take care of brushing
up your stuff for merge!

Fixes #44

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• I have read the Contribution guidelines and I am confident that my PR reflects them.
• I have followed the commit guidelines for this project.
• My code follows the standard code structure.
• This pull request has a descriptive title. For example, {Tag}: Add {Algorithm/DS name} [{Language}], not Update README.md or Added new code.
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[prince8809]

@codacy-badger please review

[prince8809]

@sangamcse is this okey?

[sangamcse]

No. Kindly go through few git tutorials before committing.

[prince8809]

what is the problem with this. @sangamcse could you please elaborate?

[sangamcse]

First of all, you have not gone through contribution guidelines which are resulting in bad commit messages. 2nd, you have ticked #88 (comment) without reading it properly. We are not here to just complete someone's task and breaking our repository totally.
3rd you have not asked for any issue assignment and started working directly.

[prince8809]

okey I am really sorry this is my first time contributing anywhere @sangamcse