Discovery: add Li2Pt (1PtLi2-1)

active_challenge.csv

@@ -1030,3 +1030,4 @@ OSC-02098,2TaI2-1,2TaI2-1,I4Ta2,discovery,light,,ok,0.27948,2.23584,8.0,2.1658,1
 OSC-02116,1IrLi2-1,1IrLi2-1,IrLi2,discovery,light,,ok,0.45428,3.63424,8.0,1.0279,0.5578,,0.4444,1.29041,gaussian_dos_scf_mesh,0.0,,
 OSC-02118,1NiLi2-1,1NiLi2-1,Li2Ni,discovery,light,,ok,0.44116,3.52928,8.0,-0.1203,1.112,,0.1111,0.86834,gaussian_dos_scf_mesh,0.04726,,
 OSC-02119,1OsLi2-1,1OsLi2-1,Li2Os,discovery,light,,ok,0.34095,2.7276,8.0,1.1801,1.4719,,0.4444,0.69832,gaussian_dos_scf_mesh,0.0,,
+OSC-02121,1PtLi2-1,1PtLi2-1,Li2Pt,discovery,light,,ok,0.51075,4.086,8.0,0.8232,1.0898,,0.0556,0.92083,gaussian_dos_scf_mesh,0.04523,,