python packages: move all things python under lang/python

I admit this may be be a bit aggressive, but the lang
folder is getting cluttered/filled up with Python, PHP, Perl,
Ruby, etc. packages.

Makes sense to try to group them into per-lang folders.

I took the Pythons.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

lang/python/python-crypto/patches/001-no-host-paths.patch

@@ -0,0 +1,11 @@
+--- a/setup.py
++++ b/setup.py
+@@ -370,7 +370,7 @@ kw = {'name':"pycrypto",
+       'ext_modules': plat_ext + [
+             # _fastmath (uses GNU mp library)
+             Extension("Crypto.PublicKey._fastmath",
+-                      include_dirs=['src/','/usr/include/'],
++                      include_dirs=['src/'],
+                       libraries=['gmp'],
+                       sources=["src/_fastmath.c"]),
+