Setting verse key by text

Add the ability to set a very key by text
Make the main.rs iterate random verses in John 3

src/main.rs

@@ -1,3 +1,4 @@
+use rand::Rng;
 use sword_rs::mgr::Mgr;
 
 fn main() {
@@ -5,6 +6,13 @@ fn main() {
     for mod_name in mgr.get_modules() {
         let mut module = mgr.get_module(&mod_name);
         println!("Module: {}", module.get_name());
-        println!("Text: {}", module.strip_text());
+        let random_number: i32 = rand::rng().gen_range(1..=20);
+        let random_number_str = format!("John.3.{}", random_number);
+        module.set_key_text(&random_number_str);
+        println!(
+            "Text John 3:{} is \"{}\"",
+            random_number,
+            module.strip_text()
+        );
     }
 }