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/software-upgrades.yaml b/jjb/software-upgrades.yaml
index acb9e0b..4a83bcc 100644
--- a/jjb/software-upgrades.yaml
+++ b/jjb/software-upgrades.yaml
@@ -98,9 +98,9 @@
           onu-image-crc: '0'
           time-trigger: "H H/23 * * *"
 
-# -----------------------------------------------------------------------         
+# -----------------------------------------------------------------------
 # https://docs.voltha.org/master/release_notes/voltha_2.11.html#onos-apps
-# -----------------------------------------------------------------------         
+# -----------------------------------------------------------------------
       - 'software-upgrades-test-voltha-2.11':
           name: 'periodic-software-upgrade-test-bbsim-2.11'
           pipeline-script: 'voltha/voltha-2.11/software-upgrades.groovy'