Add initial prototype.

2-low/collada/source/collada-libraries.ads

@@ -0,0 +1,21 @@
+with
+     collada.Library.geometries,
+     collada.Library.controllers,
+     collada.Library.animations,
+     collada.Library.visual_scenes;
+
+package collada.Libraries
+--
+-- Provides a container for the specific collada library packages.
+--
+is
+
+   type Item is
+      record
+         Geometries    : collada.Library.geometries   .item;
+         Controllers   : collada.Library.controllers  .item;
+         visual_Scenes : collada.Library.visual_scenes.item;
+         Animations    : collada.Library.animations   .item;
+      end record;
+
+end collada.Libraries;