python-pyrex: move patch used only in python-pyrex to own directory instead of files

* bonus: faster patch lookup

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

diff --git a/recipes/python/files/pyrex-fix-optimized-mode.patch b/recipes/python/python-pyrex-0.9.8.5/pyrex-fix-optimized-mode.patch
similarity index 100%
rename from recipes/python/files/pyrex-fix-optimized-mode.patch
rename to recipes/python/python-pyrex-0.9.8.5/pyrex-fix-optimized-mode.patch