Add free form text box for users to enter City manually

Summary: Add free form text box for users to enter City manually

Content (please ensure you mask any confidential information): We want to add a free form text box named City so that user can enter the city name manually for specific countries on Contact Info page in Address section. is it feasible ?

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):