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/python3/patches/011-fix-ncursesw-definition-colisions.patch

@@ -0,0 +1,12 @@
+diff --git a/Modules/_cursesmodule.c b/Modules/_cursesmodule.c
+index 3bf2ca7..c156964 100644
+--- a/Modules/_cursesmodule.c
++++ b/Modules/_cursesmodule.c
+@@ -116,7 +116,6 @@ char *PyCursesVersion = "2.2";
+     #defines many common symbols (such as "lines") which breaks the
+     curses module in other ways.  So the code will just specify
+     explicit prototypes here. */
+-extern int setupterm(char *,int,int *);
+ #ifdef __sgi
+ #include <term.h>
+ #endif