MinGW port of GNU gettext.

This port uses gettext source code as provided by GNU and patches provided by Michele Locati.

Autotools are extremally sensitive to timestamps, therefore patch cutehmi_0000-fix-0004-timestamps has been applied to patch the patch 0004-fix-gl_cv_prog_as_underscore-test.patch (which patches Autotools build scripts) by modifying patch timestamps to UTC and setting timestamp values, so that regeneration of build scripts can be avoided.