add OMRChecker

[Udayraj123]

Please confirm this pull request meets the following requirements:

• I followed the contributing guidelines: https://github.com/github/india/blob/main/CONTRIBUTING.md.

Which change are you proposing?

• Adding/updating open source project/s
• Adding/updating maintainer/s

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Adding/updating open source project/s

• The project was built in or receives significant contributions from India
• The project has at least 100 stargazers

Why should this open source project be featured?
(bragging rights as of December 2022)

• 385+ Stars and 185+ forks on github
• Top result on google search for 'omrchecker'
• Top result on github search for 'omr' topic
• Participated in hacktoberfest 2022, featured on goodfirstissue.dev, and merged a total of 21 PRs from about 15 contributors. Also participated in CodePeak, KwoC and Fossoverflow
• Its journey is covered in a blog series, which was shared by Razorpay, Technothlon and some influencers on Linkedin.

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Please note: we will close your PR without comment if you do not check the boxes above and provide ALL requested information.