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/university.go

@@ -0,0 +1,19 @@
+package resources
+
+import "strings"
+
+const ResourceUniversity = "university"
+
+type University struct {
+	Name        string
+	Restaurants []string
+}
+
+func (u *University) Kind() string     { return ResourceUniversity }
+func (u *University) ItemName() string { return u.Name }
+
+// Table output
+func (u *University) ColumnNames() []string { return []string{"Restaurants"} }
+func (u *University) Columns() []any {
+	return []any{strings.Join(u.Restaurants, "\r\n")}
+}