Add Document Format Object Schemas about schemas

[ikiril01]

The PDF Object was added for the CybOX 2.0 release: http://cybox.mitre.org/XMLSchema/objects/PDF_File/1.0/PDF_File_Object.xsd

[ikiril01]

For a notional Flash object, we could capture some useful properties like the following:

*has_geometry (Boolean; indicates whether one or more geometric definitions are present in the file)
*has_animation (Boolean; indicates whether animation code is present in the file)
*has_encryption (Boolean; indicates whether any encrypted segments are present in the file)
*has_http_calls (Boolean; indicates whether one or more http calls are present in the file)
*has_obfuscation (Boolean; indicates whether obfuscated code is present in the file)

[gtback]

This is overly broad, so I'm going to separate it into different issues.