Add Core ML conversion

Core ML conversion, task=question-answering, precision=float32

coreml/question-answering/float32_model.mlpackage/Data/com.apple.CoreML/weights/weight.bin

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:de164421cfc5d47b8d562e3890f1dbc8bc7e590b147ccb9109d6c8ece1d0bc41
+size 435585472

coreml/question-answering/float32_model.mlpackage/Manifest.json

@@ -0,0 +1,18 @@
+{
+    "fileFormatVersion": "1.0.0",
+    "itemInfoEntries": {
+        "53B7743E-CCE9-46BB-BF38-46BBCAB2DF57": {
+            "author": "com.apple.CoreML",
+            "description": "CoreML Model Specification",
+            "name": "model.mlmodel",
+            "path": "com.apple.CoreML/model.mlmodel"
+        },
+        "C187D070-7513-472D-B7D0-80CD12D70CD3": {
+            "author": "com.apple.CoreML",
+            "description": "CoreML Model Weights",
+            "name": "weights",
+            "path": "com.apple.CoreML/weights"
+        }
+    },
+    "rootModelIdentifier": "53B7743E-CCE9-46BB-BF38-46BBCAB2DF57"
+}