Only set tile in ImageFile __setstate__

[radarhere]

tile is an ImageFile property, not an Image property.

Pillow/src/PIL/ImageFile.py

Lines 84 to 94 in 0d6440d

	class ImageFile(Image.Image):
	"""Base class for image file format handlers."""
	def __init__(self, fp=None, filename=None):
	super().__init__()
	self._min_frame = 0
	self.custom_mimetype = None
	self.tile = None

But it is currently set in Image.__setstate__

Pillow/src/PIL/Image.py

Lines 705 to 707 in 0d6440d

	def __setstate__(self, state):
	Image.__init__(self)
	self.tile = []

So this PR moves that line into ImageFile.