Debug to status option (#1499)

* Let debug optionally target the status line (32 chars only)

* Add batching of messages to debug ws comms

* let Debug handle simple case of NaN

would also close #1530

* Fixup debug tests for batch comms (no new tests yet)

* mixup comms/api test to match new batch mode (no new tests)

* Add test for NaN being sent OK.

* redo original fix to padding / labels for new debug options

* fix debug test (re-add fix from #1444)

* Fix up merge issues in debug tests

nodes/core/locales/en-US/messages.json

@@ -103,9 +103,13 @@
         "output": "Output",
         "msgprop": "message property",
         "msgobj": "complete msg object",
-        "to": "to",
+        "to": "To",
         "debtab": "debug tab",
         "tabcon": "debug tab and console",
+        "toSidebar": "debug window",
+        "toConsole": "system console",
+        "toStatus": "node status (32 characters)",
+        "severity": "Level",
         "notification": {
             "activated": "Successfully activated: __label__",
             "deactivated": "Successfully deactivated: __label__"