Add support for pre-commit hook/linting

.pre-commit-config.yaml
-----------------------
  o Create initial config for pre-commit hook.

misc/*
  o Basic inline cleanups courtesy of the pre-commit hook.

Signed-off-by: Joey Armstrong <jarmstrong@linuxfoundation.org>
Change-Id: I6aa20216ade22b1a7406e8358864fb245842b713
diff --git a/jjb/voltha-e2e/README b/jjb/voltha-e2e/README
index 8b57f6f..87d01b2 100644
--- a/jjb/voltha-e2e/README
+++ b/jjb/voltha-e2e/README
@@ -4,4 +4,4 @@
 git branches are not used, all jobs are visible.
 To support modular branch based testing naming conventions that include
 some form of voltha-X.YY will be used within configs and templates to
-support separation of jobs by release branch.
\ No newline at end of file
+support separation of jobs by release branch.