devel/R-cran-gargle: New port: Utilities for Working with Google APIs

• Submitter becomes maintainer

Provides utilities for working with Google APIs
https://developers.google.com/apis-explorer.
This includes functions and classes for handling common credential types and for
preparing, executing, and processing HTTP requests.

WWW: https://gargle.r-lib.org/

Differential Revision: https://reviews.freebsd.org/D43735