Create python-linters job

Here we are creating out first in-repo job configuration for zuulv3.
One of the more simpler jobs we can define is the tox -epep8 job.

Change-Id: I4ecacf1b9ca664a98f06f5b998f19410fa7ea11d
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
diff --git a/playbooks/pre.yaml b/playbooks/pre.yaml
new file mode 100644
index 0000000..1a2e699
--- /dev/null
+++ b/playbooks/pre.yaml
@@ -0,0 +1,3 @@
+- hosts: all
+  roles:
+    - prepare-workspace