Returns a dictionary describing the version of each third-party library used by Houdini.
Each key is the name of a third-party library (e.g.
boost), and the value is a dictionary containing information about that library’s version.
The library dictionary will always contain a
version key, which is a string with a version number that changes when any update or patch is made to the library.
The dictionary may contain additional keys with further information for specific tools.