Split Editor and Runtime into separate namespaces, Created Texture and Mesh classes

Runtime/PSXObjectExporter.cs

@@ -1,12 +1,16 @@
 using UnityEngine;
 
-namespace PSXSplash.Runtime
+namespace PSXSplash.RuntimeCode
 {
     public class PSXObjectExporter : MonoBehaviour
     {
+
+        public PSXMesh Mesh;
+        public PSXTexture Texture;
+
         public void Export()
         {
-            Debug.Log($"Export: {this.name}");
+            Debug.Log($"Export: {name}");
         }
     }
 }