feat: add universities and restaurants (#4)

Features:
- Allow to search for individual resources by their name
- Add new resources and their handler: Universities, Restaurants
- Added new parameter to reverse output order

Reviewed-on: #4
Co-authored-by: bdoerfchen <git@bissendorf.co>
Co-committed-by: bdoerfchen <git@bissendorf.co>

model/resources/restaurant.go

@@ -0,0 +1,21 @@
+package resources
+
+const ResourceRestaurant = "restaurant"
+
+type Restaurant struct {
+	Name         string
+	Title        string
+	ID           string
+	Address      string
+	Image        string
+	OpeningHours any
+}
+
+func (r *Restaurant) Kind() string     { return ResourceRestaurant }
+func (r *Restaurant) ItemName() string { return r.Name }
+
+// Table output
+func (r *Restaurant) ColumnNames() []string { return []string{"ID", "Title"} }
+func (r *Restaurant) Columns() []any {
+	return []any{r.ID, r.Title}
+}