added remaining LSL2 entities

LSL2/OIEVENT/CLOSE/RDS_UNLOAD..json

@@ -0,0 +1,11 @@
+{
+    "header": {
+        "version": 1,
+        "type": "record"
+    },
+    "body": {
+        "record1": {
+            "<1>": "declare function check_notes, rds_comm\r\ndeclare subroutine forward_event\r\n\r\n\r\nif rds_comm( 'CHECK_NCR_SAVE' ) then\r\n   * DO NOTHING CAUSE THE USER WAS ASKED TO SAVE AND THEY SAID NO BUT WE MUST\r\n   return 0\r\nend\r\nforward_event( CancelFlag )\r\n*Void = check_notes()\r\nRETURN 0"
+        }
+    }
+}