 synthetic OSZICAR fixture for VaspIO / oszicar to embset tests

 magnetization summary  MW_int / M_int
       1     1.1000000     0.0000000     0.0000000     2.1000000     0.0000000     0.0000000
       2     0.0000000     1.2000000     0.0000000     0.0000000     2.2000000     0.0000000
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       1 F= -.10500000E+02 E0= -.10400000E+02  d E =-.000000E+00

   E-fermi : constraining magnetic field
   ion             lambda*MW_perp
       1     0.0010000     0.0020000     0.0030000
       2     0.0040000     0.0050000     0.0060000
