Add tests for retry_get_url

[karawoo]

Genie/genie/process_functions.py

Lines 126 to 142 in d394516

	def retry_get_url(url):
	'''
	Implement retry logic when getting urls.
	Timesout at 3 seconds, retries 5 times.
	Args:
	url: Http or https url
	Returns:
	requests.get()
	'''
	s = requests.Session()
	retries = Retry(total=5, backoff_factor=1)
	s.mount('http://', HTTPAdapter(max_retries=retries))
	s.mount('https://', HTTPAdapter(max_retries=retries))
	response = s.get(url, timeout=3)
	return(response)

[thomasyu888]

Closing as won't do. Any new GENIE development isn't to improve code, but strictly for Consortium requested improvements or features.