Add alerts_all_zones, which is a simple way to retrieve all unique alerts for a location.
1.0.0
Major restructure including: * Aligning function names with NWS endpoints * Reordering parameters to tequire userid in Nws class * Adding ability to retrieve new alerts when updating in SimpleNWS
0.11.0
Use all alert zones.
**Breaking Change** Usage of alert zones has changed due to inclusion of all alert zones