Add fake printer for testing

src/PtouchPrint.hpp

@@ -58,7 +58,9 @@ class PtouchPrint {
     std::vector<CliCmd> mCommands{};
     std::string mVersionString = "";
 
-    // CLI flags
+    // CLI flags and options
     bool mVerboseFlag = false;
+    std::string mPrinterSelection = "auto";
+    bool mListDriversFlag = false;
 };
 }  // namespace ptprnt