Front Haul Interface Library update to first seed code contribution

The basic documents for the Front Haul Interface Library have been
added to the repository but have not been tested.
In the case of the FHI Library the library folder is under the phy folder and the docs folder is
under the library folder.

Issue-Id: ODULOW-1

Change-Id: I76de73f214110691a48783b0bbf81cf216ba5473
Signed-off-by: Luis Farias <luis.farias@intel.com>
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..00d06df
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,34 @@
+# This work is licensed under a Creative Commons Attribution 4.0 International License.
+# SPDX-License-Identifier: CC-BY-4.0
+# Copyright (C) 2019 AT&T Intellectual Property
+# documentation only
+
+[tox]
+minversion = 2.0
+envlist =
+    docs,
+    docs-linkcheck,
+skipsdist = true
+
+[testenv:docs]
+basepython = python3
+deps =
+    sphinx
+    sphinx-rtd-theme
+    sphinxcontrib-httpdomain
+    recommonmark
+    lfdocs-conf
+
+commands =
+    sphinx-build -W -b html -n -d {envtmpdir}/doctrees ./docs/ {toxinidir}/docs/_build/html
+    echo "Generated docs available in {toxinidir}/docs/_build/html"
+whitelist_externals = echo
+
+[testenv:docs-linkcheck]
+basepython = python3
+deps = sphinx
+       sphinx-rtd-theme
+       sphinxcontrib-httpdomain
+       recommonmark
+       lfdocs-conf
+commands = sphinx-build -W -b linkcheck -d {envtmpdir}/doctrees ./docs/ {toxinidir}/docs/_build/linkcheck