Add documentation for the library interface

This commit adds documentation for the library interface, formerly
known as tempest-lib, and the release versioning.

Partially implements bp tempest-lib-reintegration

Change-Id: I623222a17fe3563bbe767fa803e8f771a21687a1
diff --git a/doc/source/library/utils.rst b/doc/source/library/utils.rst
new file mode 100644
index 0000000..bc2f79b
--- /dev/null
+++ b/doc/source/library/utils.rst
@@ -0,0 +1,11 @@
+.. _utils:
+
+Utils Usage
+===========
+
+---------------
+The misc module
+---------------
+
+.. automodule:: tempest.lib.common.utils.misc
+   :members: