[1/N][TRTLLM-5195][feat] Share PyTorch tensor between processes (NVIDIA#5396)

Author: chang-l

tensorrt_llm/_torch/shared_tensor/__init__.py

@@ -0,0 +1,9 @@
+from .shared_tensor import (SharedTensorContainer,
+                            _SharedTensorRebuildMethodRegistry)
+
+# Initialize the registry when the package is imported
+_SharedTensorRebuildMethodRegistry.initialize()
+
+__all__ = [
+    'SharedTensorContainer',
+]