relax SVN archive

Introduced the ORIENTATION and TC values (used in consistency testing) in the physical constants.

ORIENTATION :
The angle between the 15N-1H vector and the principal axis of the 15N chemical shift tensor

TC :
The approximate correlation time.

Modified the functions specific to consistency testing.

This is not a simple copy of the jw mapping code anymore.

Modified the consistency tests prompt so it is not a simple copy of the jw mapping code anymore.

Modified the consistency tests math_fns code.

This is a copy of the 1.2 line code without the 'cos' import and with updated copyrights.

Updated the consistency_tests code in the test suite mainly by mimicking the jw_mapping code.

Jw mapping and consistency testing are performed in the same way so their code should be similar.

Fixed the copyrights for several files from the consistency testing code.

Fixed the copyrights for several files from the consistency testing code.

Enabled the importation of the consistency tests into the system tests.

Fixed a typo in an import statement.

The script for the 5-state xz model system test is properly executed by the 1.3 line changes.