Go squared Input Fields

Added two input fields for the Go Squared Client ID, and Go Squared Site Token.  Discussed with John about testing, & thought we'd forego that unless there are reasons to add it to the test suite.  
RE: LINE 152 - app/views/clients/_primary_location_fields.erb
-This could be changed to a text area if product deems it necessary to have a larger viewable field in case they are using some third party embed code, and don't want it smashed into a single line field.

This is regarding story:
https://www.pivotaltracker.com/n/projects/877197/stories/82685520

Please reference URL in story to see this in the wild.  
Could change this to use a text area instead of text_field if product wants.