Knowledge objects dependencies

A splunk app for app developers to search and investigate dependencies between knowledge objects. The app lists all dependencies between dashboards (views), prebuilt panels, saved searches, search macro's, lookup definitions and lookup tables. These are visualised in a tree-like manner. Dependencies can be viewed both upstream and downstream. Supported also are datasource dependencies, indicating that a KO uses data originating from another. Also included are: * an overview of broken references that developers may want to fix * an overview of KO's without dependencies. Especially for KO's other than dashboards and saved searches this suggests they are unused and cleanup is in order. The app is able to detect almost all KO references, but there are a few exceptions. Currently unsupported are links to reports, deprecated (as of 7.x) simple xml syntax and dynamic references using variable substitution.