Added get_restaurant_data.py

[anaghkanungo7]

Describe your change:

Added a Python script that utilizes Zomato's free restaurant API to search for restaurants all around the world. You can do the following things:

• Get list of restaurants by providing coordinates
• Get details of a particular restaurant
• Get menu of a particular restaurant
• Get reviews of a particular restaurant
• Get details of a city by providing its name.

Please let me know if there are any changes to be made, or any errors or mistakes that I may have missed! I have tried to follow the contributing guidelines as closely as possible! The code has been tested with flake8 and formatted with black.
All doctests have been successfully passed locally, and the program compiles and does what it is supposed to do.

Thanks!

• Add an algorithm?
• Fix a bug or typo in an existing algorithm?
• Documentation change?

Checklist:

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.
• This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• All new Python files are placed inside an existing directory.
• All filenames are in all lowercase characters with no spaces or dashes.
• All functions and variable names follow Python naming conventions.
• All function parameters and return values are annotated with Python type hints.
• All functions have doctests that pass the automated testing.
• All new algorithms have a URL in its comments that points to Wikipedia or other similar explanation.
• If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.

[stale]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

Please reopen this pull request once you commit the changes requested or make improvements on the code. If this is not the case and you need some help, feel free to seek help from our Gitter or ping one of the reviewers. Thank you for your contributions!