[DOCS] Add C to Rust code migration guide

[IshanGrover2004]

In raising this pull request, I confirm the following (please check boxes):

• [x] I have read and understood the contributors guide.
• [x] I have checked that another pull request for this purpose does not exist.
• [x] I have considered, and confirmed that this submission will be valuable to others.
• [x] I accept that this submission may not be used, and the pull request closed at the will of the maintainer.
• [x] I give this submission freely, and claim no ownership to its content.
• [x] I have mentioned this change in the changelog.

My familiarity with the project is as follows (check one):

• [ ] I have never used CCExtractor.
• [ ] I have used CCExtractor just a couple of times.
• [ ] I absolutely love CCExtractor, but have not contributed previously.
• [x] I am an active contributor to CCExtractor.

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When I tried contributing to CCExtractor, it was difficult for me to deal all of this at once. That's why I wrote this migration guide so that new contributors don't feel so overwhelm at once

[IshanGrover2004]

@PunitLodha @prateekmedia @elbertronnie @cfsmp3 @canihavesomecoffee & others, Can you all check if its the right flow of migrating any C code to Rust