update changelog for tensor shape tracking
## [master](https://github.com/NVIDIA-AI-IOT/torch2trt/tree/master)
+- Added tensor shape tracking to support dynamic shapes for flatten, squeeze, unsqueeze, view, reshape, interpolate, and getitem methods
- Added EasyOCR example
- Added the ``DatasetRecorder`` context manager, allowing to easily capture of module inputs in large pipeline for calibration and shape inference
- Added support for legacy max_batch_size using optimization profiles
