Allow compiling aapt for the device

Changes:

- The static device version of libandroidfw now includes
  the extra functions needed by aapt. I could only find
  a few host tools that use the static library, so this is
  hopefully not a problem.

- The pseudolocalization code is moved into aapt.
  It was previously in libhost, but only used by aapt.

Change-Id: Ib393ebb7dcebee8abbb628cbe5255ea1679674ac
diff --git a/tools/aapt/pseudolocalize.h b/tools/aapt/pseudolocalize.h
new file mode 100644
index 0000000..94cb034
--- /dev/null
+++ b/tools/aapt/pseudolocalize.h
@@ -0,0 +1,9 @@
+#ifndef HOST_PSEUDOLOCALIZE_H
+#define HOST_PSEUDOLOCALIZE_H
+
+#include <string>
+
+std::string pseudolocalize_string(const std::string& source);
+
+#endif // HOST_PSEUDOLOCALIZE_H
+