CRAN release 1.5.0

icesSAG 1.5.0 (2024-10-24)

• Update all functions to point to new API.
• Remove token authentication, and move to JWT tokens via icesConnect.
• Introduce the use of caching for some functions to reduce API requests.
• export GET and POST request functions.
• Depreciate redundant graph functions (e.g. YSSBR).
• New functions to set package options: sag_use_token() and sag_messages().
• Link messages package option to quiet argument in get requests.
• GetListStocks now accepts a stock and modifiedAfter arguments
  for additional server side filtering.
• Remove file upload capability.