Improved shared library structure dump to take more types into account

Added support for:
* L0.SCLScript
* GF.File

This also removes dumping of the .pgraph file from the shared library
exporter because the contents of the generated .pgraph file have never
been complete, nor stable enough to actually give out any information on
what has changed and how. The system gives no diffs out on what most
usually changes, i.e. SCL modules, scripts, SVG files and other similar
textual data.

gitlab #452

Change-Id: Id35b8b6d339398ba89aca3e10aff7aeb4c610242