fix(cpn): radio specific name and label validators (#4670)

Only allows valid characters in names, drops invalid characters if present

companion/src/shared/namevalidator.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) EdgeTX
+ *
+ * Based on code named
+ *   opentx - https://github.com/opentx/opentx
+ *   th9x - http://code.google.com/p/th9x
+ *   er9x - http://code.google.com/p/er9x
+ *   gruvin9x - http://code.google.com/p/gruvin9x
+ *
+ * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#pragma once
+
+#include "boards.h"
+#include "textvalidator.h"
+
+// characters supportd by B&W radio firmware gui editor
+constexpr char NAME_VALID_PATTERN_BW[]    {"[ A-Za-z0-9\\-]*"};
+// characters supported by color radio firmware keyboard widget
+constexpr char NAME_VALID_PATTERN_COLOR[] {"[ A-Za-z0-9\\-\\_\\,\\.\"\\+\\/\\*\\=\\%\\!\\?\\#\\<\\>\\@\\$\\(\\)\\{\\}\\[\\]\\;\\:\\']*"};
+
+class NameValidator : public TextValidator
+{
+  Q_OBJECT
+
+  public:
+    explicit NameValidator(Board::Type board, QObject * parent = nullptr) :
+       TextValidator(parent, Boards::getCapability(board, Board::HasColorLcd) ? NAME_VALID_PATTERN_COLOR : NAME_VALID_PATTERN_BW) {}
+    virtual ~NameValidator() {}
+};
+