Build header path from prefix instead of full path from command line

Author: wravery

src/ClientGenerator.cpp

@@ -210,8 +210,8 @@ bool Generator::outputSource() const noexcept
 
 // WARNING! Do not edit this file manually, your changes will be overwritten.
 
-#include ")cpp" << _headerPath
-			   << R"cpp("
+#include ")cpp" << _schemaLoader.getFilenamePrefix()
+			   << R"cpp(Client.h"
 
 #include <algorithm>
 #include <array>