Created getCountryByPhoneCode API

[CodeVibranium]

General

Reference: #81


Description:
Created getCountryByPhoneCode API which

1. checks if the API invoked has the correct number of required parameters sent to it.
2. checks if the sent parameter is of type string.
3. It iterates over the countriesList data and return an array of object (countries list) if the country is found by phone_code else it returns an empty Array.

Type of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have updated the documentation accordingly
• I have added tests to cover my changes
• All new and existing tests passed

Additional notes