remove bash scripts from properties generation

[Sorin Marian Nasoi]

Reimplementing the scripts that generate the options for the Zorba cmd with the same concept used for the runtime generation.

Description:
To be more specific I'm referring to 'scripts/gen_all_props and 'scripts/gen_po_props'.
When someone wants to add an option in the zorbacmd he has to:
- change the 'bin/zorbacmdproperties.txt'
- run the scripts in order to generate the 'bin/zorbacmdproperties_base.h' with the new vales from 'bin/zorbacmdproperties.txt'

Instead we could we could generate the properties automatically (like we do with the runtime iterators) and remove the bash scripts.

[Sorin Marian Nasoi (sorin.marian.nasoi)]

My proposal for fixing this issue is to:

- rewrite gen_all_props and gen_po_props scripts in XQuery

- rewrite src/system/zorba_properties.txt and src/store/naive/store_properties.txt as XML files

- run the 2 XQuery scripts in CMake every time something changed in the scripts or the XML files

[Sorin Marian Nasoi (sorin.marian.nasoi)]

Also in order to make sure the Documentation for the Zorba command line is kept in sync with the changes in the Zorba command line, we could also update the doc/zorba/commandline.dox every time the src/system/zorba_properties.h changes.