Generate an RT API URL

Create an RT API URL based on the server URL and any arguments provided

rt_url(..., query_params = NULL, base_url = Sys.getenv("RT_BASE_URL"))

Arguments

...	Parts of the URL to be joined by "/"
query_params	(list) A named list of query parameters where the names of the list map to the query parameter names and the values of the list map to the query parameter values. e.g., list(a=1) maps to "?a=1".
base_url	(character) The base URL that hosts RT for your organization