Add seeds to configs.

config.graph.template.jsonnet

@@ -419,4 +419,7 @@ assert pretrained_tokens == null || pretrained_transformer_name == null: "Can't
         },
         validation_metric: "+EM",
     }),
+    random_seed: 8787,
+    pytorch_seed: 8787,
+    numpy_seed: 8787,
 }

config.template.jsonnet

@@ -386,4 +386,7 @@ assert pretrained_tokens == null || pretrained_transformer_name == null: "Can't
         },
         validation_metric: "+EM",
     }),
+    random_seed: 8787,
+    pytorch_seed: 8787,
+    numpy_seed: 8787,
 }