Introducing pyobmc

We have openbmc python utilities scattered all over the place.  To
facilitate reuse, bring them together in a single python package.

None of this is new code, it was all simply ported and re-arranged
from other projects.

Ran everything through pep8.
diff --git a/obmc/mapper.py b/obmc/mapper.py
new file mode 100644
index 0000000..3f9df5d
--- /dev/null
+++ b/obmc/mapper.py
@@ -0,0 +1,43 @@
+# Contributors Listed Below - COPYRIGHT 2016
+# [+] International Business Machines Corp.
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+
+import dbus
+
+MAPPER_NAME = 'org.openbmc.objectmapper'
+MAPPER_IFACE = MAPPER_NAME + '.ObjectMapper'
+MAPPER_PATH = '/org/openbmc/objectmapper/objectmapper'
+ENUMERATE_IFACE = 'org.openbmc.Object.Enumerate'
+MAPPER_NOT_FOUND = 'org.openbmc.objectmapper.Error.NotFound'
+
+
+class Mapper:
+    def __init__(self, bus):
+        self.bus = bus
+        obj = bus.get_object(MAPPER_NAME, MAPPER_PATH, introspect=False)
+        self.iface = dbus.Interface(
+            obj, dbus_interface=MAPPER_IFACE)
+
+    def get_object(self, path):
+        return self.iface.GetObject(path)
+
+    def get_subtree_paths(self, path='/', depth=0):
+        return self.iface.GetSubTreePaths(path, depth)
+
+    def get_subtree(self, path='/', depth=0):
+        return self.iface.GetSubTree(path, depth)
+
+    def get_ancestors(self, path):
+        return self.iface.GetAncestors(path)