TensorFlow Official Models 2.11.4

This release includes a few updates to RetinaNet model under official/vision:

1. Skip generating image_info in SavedModel is input_type is tflite.
2. Normalize anchors during TFLite post-processing in object detection.
3. Add v3 NMS for Edge TPU.
4. Support class agnostic NMS for v2 NMS.
5. Support output decoded boxes (before NMS) even when NMS is applied.
6. A few other bug fix to make detection generator more robust.