+ variants
+ improved data definitions
+ improved pics references
+ not qualifier (pics, data)

+ inline collection items
+ improved distinction of structured and simple data types and instances
+ literal value use
+ QIdentifier (for packages only so far)
+ basic procedure call response (postprocessing needs to link it to the call)
+ numeric identifiers for structured data

+ added literal value use
+ added extension / inheritance
* restored optional behaviour

+ added operations (except getParticipatingComponents for locally ordered test descriptions
+ added literal value use related properties and classes
+ added extension / inheritance related properties and classes
- cleaned up old comments

Signed-off-by: Philip Makedonski <philip.makedonski@gmail.com>