Add example interfaces

Add example interfaces for testing.
Add a script that generates sdbusplus bindings for example interfaces.

Change-Id: I683ce9dca74d827d226833ed8a56f87243914e04
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/example/events/match2.yaml b/example/events/match2.yaml
index db10099..4bf2ddd 100644
--- a/example/events/match2.yaml
+++ b/example/events/match2.yaml
@@ -9,14 +9,14 @@
       type: match
       signature:
           type: signal
-          path: /xyz/openbmc_project/testing
+          path: /xyz/openbmc_project/Inventory/example
           interface: org.freedesktop.DBus.Properties
           member: PropertiesChanged
       filter:
           type: propertyChangedTo
           args:
-            - value: xyz.openbmc_project.Testing
-            - value: TestProperty
+            - value: xyz.openbmc_project.Example.Iface1
+            - value: ExampleProperty1
             - value: teststring
       action:
           type: destroyObject("Example")