refactor player assets into own assembly

Assets/Player/Runtime/PlayerCamera.cs

@@ -0,0 +1,13 @@
+using UnityEngine;
+
+namespace EscapeRoomEngine.Portal.Runtime
+{
+    public class PlayerCamera : MonoBehaviour
+    {
+        public new Camera camera;
+        [SerializeField] private Transform leftEye, rightEye;
+
+        public Transform GetEyeTransform(Camera.StereoscopicEye eye) =>
+            eye == Camera.StereoscopicEye.Left ? leftEye : rightEye;
+    }
+}