adding the antialiasing option for `resized`

[wyli]

Is your feature request related to a problem? Please describe.
follow-up of #4020, the antialiasing functions in Resize

MONAI/monai/transforms/spatial/array.py

Lines 626 to 633 in 0bbeb1e

	anti_aliasing: bool
	Whether to apply a Gaussian filter to smooth the image prior
	to downsampling. It is crucial to filter when downsampling
	the image to avoid aliasing artifacts. See also ``skimage.transform.resize``
	anti_aliasing_sigma: {float, tuple of floats}, optional
	Standard deviation for Gaussian filtering used when anti-aliasing.
	By default, this value is chosen as (s - 1) / 2 where s is the
	downsampling factor, where s > 1. For the up-size case, s < 1, no

should be implemented in the resized.

it might be useful to include the default sigma computing logic (based on spatial size) as part of GaussianSmooth

MONAI/monai/transforms/intensity/array.py

Line 1124 in 0bbeb1e

class GaussianSmooth(Transform):