Fix header include for cross-compilation to Windows.

On unix, filenames are case sensitive and all include files are lowercase.

include/common/otherTools.h

@@ -21,7 +21,7 @@
 #define KIWIX_OTHERTOOLS_H
 
 #ifdef _WIN32
-#include <Windows.h>
+#include <windows.h>
 #else
 #include <unistd.h>
 #endif

src/common/pathTools.cpp

@@ -24,7 +24,7 @@
 #include <limits.h>
 #elif _WIN32
 #include <windows.h>
-#include "Shlwapi.h"
+#include "shlwapi.h"
 #include <direct.h>
 #define getcwd _getcwd // stupid MSFT "deprecation" warning
 #endif