Begin delete command implementation

cli/commanddelete.h

@@ -0,0 +1,13 @@
+#ifndef COMMANDDELETE_H
+#define COMMANDDELETE_H
+#include "command.h"
+
+class CommandDelete : public Command
+{
+public:
+    using Command::Command;
+
+    int handle(QStringList arguments) override;
+};
+
+#endif // COMMANDDELETE_H