[CORD-3256] Generate TT/TP community test job.

jjb/voltha-test/voltha.yaml
jjb/voltha-test/voltha-nightly-jobs.yaml
----------------------------------------
  - First attempt at cloning a voltha pipeline job from DT to TT.
  - Add a few placeholders for future work to split yaml configs
    into a more modular setup.

Makefile
config.mk
makefiles/lint/groovy.mk
makefiles/lint/yaml.mk
makefiles/virtualenv.mk
------------------------
  - Copy in makefile libraries from repo::voltha-docs.
  - lint/yaml and lint/groovy.

Misc / Fixes
------------
  - Fixed colorization in tree output.
  - Comment out jjb import in requirements.txt, Makefile still configured to use an older version.
  - Move README.md outside jjb/ lf-env scripts blindly grep for error patterns beneath jjb/

Change-Id: I36e304f6ca9d54dc26fa5d36b17373cbb00f5afd
diff --git a/makefiles/git-submodules.mk b/makefiles/git-submodules.mk
index 656d8b4..373dc23 100644
--- a/makefiles/git-submodules.mk
+++ b/makefiles/git-submodules.mk
@@ -59,8 +59,10 @@
 ## -----------------------------------------------------------------------
 help ::
 	@echo
-	@echo '[GIT-SUBMODULES]'
+	@echo '[GIT-SUBMODULES: docs]'
 	@echo '  reload              Setup to auto-reload sphinx doc changes in browser'
+	@echo
+	@echo '[GIT-SUBMODULES: deps]'
 	@echo '  submodules          Checkout dependent git submodules'
   ifdef VERBOSE
 	@echo '  global-jjb          Checkout ci-management submodule global-jjb'