Added new endpoints under /forecast/narrative

templates/forecast_narrative.txt.tmpl

@@ -0,0 +1,20 @@
+{{- if .Data -}}
+Narrative Forecast
+Location ID: {{if .Data.LocationID}}{{.Data.LocationID}}{{else}}n/a{{end}}
+Location Name: {{if .Data.LocationName}}{{.Data.LocationName}}{{else}}n/a{{end}}
+Issued At: {{.Data.IssuedAt}}
+Periods: {{len .Data.Periods}}
+{{- range $i, $period := .Data.Periods}}
+
+[{{$i}}] {{$period.StartTime}} -> {{$period.EndTime}}
+{{- if $period.Name}}
+Name: {{$period.Name}}
+{{- end}}
+Condition Code: {{$period.ConditionCode}}
+{{- if $period.TextDescription}}
+Summary: {{$period.TextDescription}}
+{{- end}}
+{{- end}}
+{{- else -}}
+No narrative forecast data available.
+{{- end}}