nodejs: add hardware codec signals

Change-Id: I9fe37333bfbd4f089c8d85db9c2b446e4a1a7cbe
Gitlab: #55

bin/nodejs/configurationmanager.i

@@ -53,6 +53,9 @@ public:
 
     virtual void migrationEnded(const std::string& /*accountId*/, const std::string& /*state*/){}
     virtual void deviceRevocationEnded(const std::string& /*accountId*/, const std::string& /*device*/, int /*status*/){}
+
+    virtual void hardwareDecodingChanged(bool /*state*/){}
+    virtual void hardwareEncodingChanged(bool /*state*/){}
 };
 %}