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-test/voltha.yaml b/jjb/voltha-test/voltha.yaml
index 93cb11a..62b0dfa 100644
--- a/jjb/voltha-test/voltha.yaml
+++ b/jjb/voltha-test/voltha.yaml
@@ -276,7 +276,7 @@
           time: '13'
           pipeline-script: 'voltha/voltha-2.12/physical-build.groovy'
 
-      # -----------------------------------------------------------------------          
+      # -----------------------------------------------------------------------
       # Berlin POD test job - 2.11 versions: uses 1T4GEM tech profile on voltha branch
       - 'build_voltha_pod_test':
           timeout: 330