[gitg] Add missing includes

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 82337a0bd09cb63fdd61df90482aef5494be5846
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Wed Dec 23 08:46:06 2015 +0100

    Add missing includes
    
    This happens for developing on linux something that is for windows

 libgitg/gitg-platform-support-win32.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/libgitg/gitg-platform-support-win32.c b/libgitg/gitg-platform-support-win32.c
index ca7f725..debb9fc 100644
--- a/libgitg/gitg-platform-support-win32.c
+++ b/libgitg/gitg-platform-support-win32.c
@@ -21,6 +21,17 @@
 
 #include <gio/gwin32inputstream.h>
 
+#define SAVE_DATADIR DATADIR
+#undef DATADIR
+#include <io.h>
+#include <conio.h>
+#ifndef _WIN32_WINNT
+#define _WIN32_WINNT 0x0501
+#endif
+#include <windows.h>
+#define DATADIR SAVE_DATADIR
+#undef SAVE_DATADIR
+
 gboolean
 gitg_platform_support_use_native_window_controls (GdkDisplay *display)
 {