Added two missing includes to fix build on gcc

src/libslic3r/GCode/GCodeProcessor.cpp

@@ -5,6 +5,7 @@
 
 #include <boost/log/trivial.hpp>
 #include <boost/nowide/fstream.hpp>
+#include <boost/nowide/cstdio.hpp>
 
 #include <float.h>
 #include <assert.h>

src/slic3r/GUI/GLShader.hpp

@@ -4,6 +4,8 @@
 #include <array>
 #include <string>
 
+#include "libslic3r/Point.hpp"
+
 namespace Slic3r {
 
 class GLShaderProgram