added runtime and requirements_list

jupyter-openbis-extension/static/state.js

 define([],
     function () {
+        // noinspection JSAnnotator
         return {
             // connection dialog
             connection: {
@@ -26,7 +27,15 @@ define([],
             entity: null,
 
             // openBIS v3 connection
-            openbisService : null
+            openbisService : null,
+
+            //runtime environment (e.g. Python version) and requirements (package list)
+
+            requirements_list : null,
+            requirements_filename : null,
+            runtime_filename : null,
+            runtime : null
+
         }
     }
 )
\ No newline at end of file