combine **inplace API

[todo]

bagua/bagua/torch_api/communication.py

Lines 1062 to 1067 in cd499b8

	# TODO combine **inplace API
	def alltoall_inplace(
	tensor: torch.Tensor,
	comm: Optional[B.BaguaSingleCommunicatorPy] = None,
	):
	"""The in-place version of :func:`alltoall`."""

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This issue was generated by todo based on a TODO comment in cd499b8. It's been assigned to @wangraying because they committed the code.