relax SVN archive

This change was communicated by Michael Bieri (https://gna.org/users/michaelbieri) in the posts
https://mail.gna.org/public/relax-devel/2009-12/msg00020.html (Message-id: <4B217970.805@...>) and
https://mail.gna.org/public/relax-devel/2009-12/msg00022.html (Message-id: <4B21950C.5080803@...>).

This enhances clarity allowing for a better understanding and to facilitate manipulation. The
relax_gui.py module was split up as follows:

relax_gui.py
--> res/calc_modelfree.py (script to calculate model-free).
--> res/calc_noe.py (script to calculate noe).
--> res/calc_rx.py (script to calculate Rx).
--> res/project.py (script to open and save the project)
--> res/results_analysis.py (script to perform post-analysis: craete grace plots, pymol macros...)

The res/filedialog.py, res/message.py, res/select_model_calc.py, and res/settings.py have not yet
been created due to ambiguities as to their origin.