[VOICE-1310] rename address resource

:phone::feet:

/cc @scott2211 @steved555 


### Description
The name of the address resource, which was added here https://github.com/zendesk/zendesk_api_client_rb/commit/76b7abc9ace8fb14c080dad209a1c0b59ccd54da was causing conflicts with the address model in classic. 

This PR renames the resource to a less generic name.

### Steps to merge
 - [ ] :+1: of the team

### References
 - Jira link: https://zendesk.atlassian.net/browse/VOICE-1310