Improve face recognition (#15670)

* Face recognition tuning

* Support face alignment

* Cleanup

* Correctly download model

frigate/embeddings/embeddings.py

@@ -123,6 +123,18 @@ class Embeddings:
             device="GPU" if config.semantic_search.model_size == "large" else "CPU",
         )
 
+        if self.config.face_recognition.enabled:
+            self.face_embedding = GenericONNXEmbedding(
+                model_name="facedet",
+                model_file="facedet.onnx",
+                download_urls={
+                    "facedet.onnx": "https://github.com/NickM-27/facenet-onnx/releases/download/v1.0/facedet.onnx",
+                    "landmarkdet.yaml": "https://github.com/NickM-27/facenet-onnx/releases/download/v1.0/landmarkdet.yaml",
+                },
+                model_type=ModelTypeEnum.face,
+                requestor=self.requestor,
+            )
+
         self.lpr_detection_model = None
         self.lpr_classification_model = None
         self.lpr_recognition_model = None