initial add of openswitch shared module

This commit adds a new shared module openswitch for building modules that
work with OpenSwitch.  This shared module supports connectivity to
OpenSwitch devices over SSH, CLI or REST.  It also adds an openswitch
documentation fragment for use in modules

lib/ansible/utils/module_docs_fragments/openswitch.py

@@ -0,0 +1,66 @@
+#
+# (c) 2015, Peter Sprygada <psprygada@ansible.com>
+#
+# This file is part of Ansible
+#
+# Ansible is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Ansible is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
+
+
+class ModuleDocFragment(object):
+
+    # Standard files documentation fragment
+    DOCUMENTATION = """
+options:
+  host:
+    description:
+      - Specifies the DNS host name or address for connecting to the remote
+        device over the specified transport.  The value of host is used as
+        the destination address for the transport.  Note this argument
+        does not affect the SSH argument.
+    required: true
+  port:
+    description:
+      - Specifies the port to use when buiding the connection to the remote
+        device.  This value applies to either I(cli) or I().  The port
+        value will default to the approriate transport common port if
+        none is provided in the task.  (cli=22, http=80, https=443).  Note
+        this argument does not affect the SSH transport.
+    required: false
+    default: 0 (use common port)
+  username:
+    description:
+      - Configures the usename to use to authenticate the connection to
+        the remote device.  The value of I(username) is used to authenticate
+        either the CLI login or the eAPI authentication depending on which
+        transport is used. Note this argument does not affect the SSH
+        transport.
+    required: true
+  password:
+    description:
+      - Specifies the password to use when authentication the connection to
+        the remote device.  This is a common argument used for either I(cli)
+        or I(rest) transports.  Note this argument does not affect the SSH
+        transport
+    required: false
+    default: null
+  transport:
+    description:
+      - Configures the transport connection to use when connecting to the
+        remote device.  The transport argument supports connectivity to the
+        device over ssh, cli or REST.
+    required: true
+    default: ssh
+    choices: ['ssh', 'cli', 'rest']
+
+"""