feat: Migrate all features to droplet-rs

Signed-off-by: quexeky <git@quexeky.dev>

libraries/droplet/src/file_utils.rs

@@ -0,0 +1,24 @@
+use std::{
+    fs::{self, metadata},
+    path::{Path, PathBuf},
+};
+
+fn list_files_recursive(vec: &mut Vec<PathBuf>, path: &Path) {
+    if metadata(path).unwrap().is_dir() {
+        let paths = fs::read_dir(path).unwrap();
+        for path_result in paths {
+            let full_path = path_result.unwrap().path();
+            if metadata(&full_path).unwrap().is_dir() {
+                list_files_recursive(vec, &full_path);
+            } else {
+                vec.push(full_path);
+            }
+        }
+    }
+}
+
+pub fn list_files(path: &Path) -> Vec<PathBuf> {
+    let mut vec = Vec::new();
+    list_files_recursive(&mut vec, path);
+    vec
+}