Licence fix, add SPDX-License-Identifier, remove unused code files

src/forms/DigitalConsole/DigitalConsole.cpp

@@ -1,3 +1,6 @@
+// Copyright (c) Charles J. Cliffe
+// SPDX-License-Identifier: GPL-2.0+
+
 #include "DigitalConsole.h"
 #include "CubicSDR.h"
 #include <iomanip>

src/forms/DigitalConsole/DigitalConsole.h

@@ -1,3 +1,6 @@
+// Copyright (c) Charles J. Cliffe
+// SPDX-License-Identifier: GPL-2.0+
+
 #pragma once
 
 #include <map>

src/forms/SDRDevices/SDRDeviceAdd.cpp

@@ -1,5 +1,7 @@
-#include "SDRDeviceAdd.h"
+// Copyright (c) Charles J. Cliffe
+// SPDX-License-Identifier: GPL-2.0+
 
+#include "SDRDeviceAdd.h"
 #include "SDREnumerator.h"
 
 SDRDeviceAddDialog::SDRDeviceAddDialog( wxWindow* parent ): SDRDeviceAddForm( parent ) {

src/forms/SDRDevices/SDRDeviceAdd.h

@@ -1,3 +1,6 @@
+// Copyright (c) Charles J. Cliffe
+// SPDX-License-Identifier: GPL-2.0+
+
 #pragma once
 
 #include "SDRDeviceAddForm.h"

src/forms/SDRDevices/SDRDevices.cpp

@@ -1,3 +1,6 @@
+// Copyright (c) Charles J. Cliffe
+// SPDX-License-Identifier: GPL-2.0+
+
 #include "SDRDevices.h"
 
 #include <wx/textdlg.h>

src/forms/SDRDevices/SDRDevices.h

@@ -1,3 +1,6 @@
+// Copyright (c) Charles J. Cliffe
+// SPDX-License-Identifier: GPL-2.0+
+
 #pragma once
 
 #include <map>