Add setfit_cv_results.json from SETFit training

setfit_cv_results.json

@@ -0,0 +1,15 @@
+{
+  "cv_f1_micro_mean": 0.7961673392582387,
+  "cv_f1_micro_std": 0.009789058670821733,
+  "cv_f1_macro_mean": 0.7720765749095889,
+  "fold_scores": [
+    0.7851397931826887,
+    0.7989151491669896,
+    0.8031189083820662,
+    0.7845683728036669,
+    0.8090944727557821
+  ],
+  "num_synthetic": 5000,
+  "num_real": 100,
+  "total": 5100
+}