This method looks up the extension point plugins with the given ID in the plugin registry. If one or more are
found, their corresponding interfaces are instantiated and the callExtensionPoint() method is invoked.
log - the logging channel to write debugging information to
id - The ID of the extension point to call
object - The parent object that is passed to the plugin
KettleException - In case something goes wrong in the plugin and we need to stop what we're doing.