Added Infinity endpoint

Convert the proposed initial structure to the one compatible with Infinity Endpoint.

endpoint.py

@@ -0,0 +1,31 @@
+from typing import List, Optional, Union
+
+from infinity.tasks import TextClassificationEndpoint, TextClassificationOutput, \
+    TextClassificationParams
+from optimum.onnxruntime import ORTModelForSequenceClassification
+from transformers import pipeline, AutoTokenizer
+
+class BankingEndpoint(TextClassificationEndpoint):
+
+    __slots__ = ("_pipeline", )
+
+    def __init__(self):
+        super().__init__()
+
+        self._pipeline: Optional[ORTModelForSequenceClassification] = None
+
+    def initialize(self, **kwargs):
+        print("Initializing")
+        model = ORTModelForSequenceClassification.from_pretrained("philschmid/distilbert-onnx-banking77")
+        tokenizer = AutoTokenizer.from_pretrained("philschmid/distilbert-onnx-banking77")
+        
+        self._pipeline = pipeline("text-classification", model=model, tokenizer=tokenizer)
+        print("INITIALIZED")
+
+
+    def handle(
+        self,
+        inputs: Union[str, List[str]],
+        parameters: TextClassificationParams
+    ) -> List[TextClassificationOutput]:
+        return self._pipeline(inputs, **parameters)