Enable pycodestyle

This commit allows our python code to be run through the CI format-code
scripts.  The exact content is copied from sdbusplus.

Tested, ran pycodeformat on each script, observed it passing.
Ran each script individually.  check_base_registry seems broken previous
to this commit, although it provides the same output.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: I7eacfa355b794f49308b900c2988809d2aa122c3
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..d9fc148
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1 @@
+# Empty config to trigger pycodestyle.