Added Binary Heap Algorithm (Min Heap) in C

[Dibbu-cell]

Description of Change

Added a Min Binary Heap implementation in C under the binary_trees folder.

• Supports insert, extract min, search, and display.
• Includes self-tests as per guidelines.
• Follows Doxygen documentation and naming conventions.

Fixes #1496

Contributors guide: https://github.com/TheAlgorithms/C/blob/master/CONTRIBUTING.md

References

https://en.wikipedia.org/wiki/Binary_heap

Checklist

• Added description of change
• Added file name matches File name guidelines
• Added tests and example, test must pass
• Relevant documentation/comments is changed or added
• PR title follows semantic commit guidelines
• Search previous suggestions before making a new one, as yours may be a duplicate.
• I acknowledge that all my contributions will be made under the project's license.

Notes: I have added Binary Heap Algorithm (Min Heap) .

[Dibbu-cell]

Hi! This PR is for Hacktoberfest. Please add the hacktoberfest-accepted label if it cannot be merged soon. Thank you!

[github-actions]

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