python-automat: new package

This is a new requirement for the Twisted package.

From the readme:

Automat is a library for concise, idiomatic Python expression of
finite-state automata (particularly deterministic finite-state
transducers).

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

lang/python/python-automat/patches/002-omit-visualize.patch

@@ -0,0 +1,18 @@
+--- a/setup.py
++++ b/setup.py
+@@ -27,15 +27,6 @@ setup(
+         "attrs",
+         "six",
+     ],
+-    extras_require={
+-        "visualize": ["graphviz>0.5.1",
+-                      "Twisted>=16.1.1"],
+-    },
+-    entry_points={
+-        "console_scripts": [
+-            "automat-visualize = automat._visualize:tool"
+-        ],
+-    },
+     author='Glyph',
+     author_email='glyph@twistedmatrix.com',
+     include_package_data=True,