added enemy inputs as a resource

scenes/enemies/EnemyInitInputs.cs

@@ -0,0 +1,18 @@
+using Godot;
+using System;
+
+[GlobalClass]
+public partial class EnemyInitInputs : Resource
+{
+    [Export(PropertyHint.Range, "0,10,0.1,or_greater")]
+    public float Speed = 5.0f;
+
+    public EnemyInitInputs()
+    {
+        Speed = 5.0f;
+    }
+    public EnemyInitInputs(float speed)
+    {
+        Speed = speed;
+    }
+}