fix: add missing utils file (#11)

Author: 1egoman

src/bindings/utils.rs

@@ -0,0 +1,13 @@
+#[derive(Debug, PartialEq, Eq, Clone)]
+pub enum DirnameApi {
+    Dirname,
+    ImportMetaUrl,
+}
+
+#[derive(Debug, PartialEq, Eq, Clone)]
+pub enum ImportExtension {
+    None,
+    Ts,
+    Js,
+}
+