Load 4D-Var test cases

[arango]

I added the 4D-Var test cases for the California Current System, 1/3 degree resolution, (WC13). It includes several sub-directories for each 4D-Var algorithm:

/WC13
     /ARRAY_MODES
     /Data
     /Functionals
     /I4DVAR
     /I4DVAR_impact
     /Normalization
     /plotting
     /PSAS
     /PSAS_impact
     /PSAS_sensitivity
     /R4DVAR
     /R4DVAR_impact
     /R4DVAR_sensitivity

This repository is temporarily restricted from everyone. Only the beta-testers have access to it.

Many thanks to Andy Moore for his extra-ordinary help coding and testing these 4D-Var data assimilation algorithms. These tests are part of the upcoming ROMS data assimilation workshop at University of California, Santa Cruz, July 12-16, 2010.