Change script location.

Split js code.
Added cache and changed loading mechanism for js sources.

script/entities/edge/api/index.js

@@ -0,0 +1,9 @@
+
+{
+let modulDir = "entities/edge/";
+ 
+doInclude ([
+    include ("model/BaseEdge.js", modulDir),
+    include ("model/EdgeModel.js", modulDir)
+])
+}