Optimization of in738

This example is one of real material characterization where numerous experiments were done on in738 at elevated temperature (thanks to the BAM for this example. The test matrix includes

****optimize levenberg_marquardt
  ***convergence
      perturb 0.1
      lambda0 5.0
      lambda_max 1.e10
      iter    60
      nu      5.0
      fmin    1.e-10
      gmin    1.e-10
  ***zrun Zrun -Q -S simulate
  ***files in738
  ***values
   **auto_init_from_file levenberg.best
      K    1314.          min  600.     max  5000.
      n    6.10           min  1.2      max  20.
      M    1500.    min 200.  max 1.e6
      m    4.0      min 1.    max 20.
   ***compare
     g_file_file  tenx2.test    1    2      ../EXP/tenx2.exp       1   4
     g_file_file  tenx3.test    1    2      ../EXP/tenx3.exp       1   4
     g_file_file  tenx6.test    1    2      ../EXP/tenx6.exp       1   4
     g_file_file  tx6x2x6.test  1    2      ../EXP/tx6x2x6.exp     1   4
     g_file_file  tx6x3x4.test  1    2      ../EXP/tx6x3x4.exp     1   4
     g_file_file  cr174.test    1    2      ../EXP/cr174.exp       1   2  weight 20.
     g_file_file  cr335.test    1    2      ../EXP/cr335.exp       1   3  weight 20.
     g_file_file  cr392.test    1    2      ../EXP/cr392.exp       1   3  weight 20.
     g_file_file  cr410.test    1    2      ../EXP/cr410.exp       1   3  weight 20.
     g_file_file  relx3.test    1    2      ../EXP/relx3.exp       1   4  weight 20.
     g_file_file  lcf6x3b.test  1    2      ../EXP/lcf6x3b.exp     1   4
     g_file_file  lcf1x5b.test  1    2      ../EXP/lcf1x5b.exp     1   4
     g_file_file  lcf1x3.test   1    2      ../EXP/lcf1x3.exp      1   4
     g_file_file  frlx3.test    1    2      ../EXP/frlx3.exp       1   4
****return