Updated list of TIFF compression methods

[radarhere]

Resolves #5335, that states that the "compression" list at https://pillow.readthedocs.io/en/latest/handbook/image-file-formats.html#saving-tiff-images is incorrect.

I've added "tiff_lzw", "jpeg", "packbits", "lzma", "zstd" and "webp" from

Pillow/src/PIL/TiffImagePlugin.py

Lines 109 to 128 in 8064e04

	COMPRESSION_INFO = {
	# Compression => pil compression name
	1: "raw",
	2: "tiff_ccitt",
	3: "group3",
	4: "group4",
	5: "tiff_lzw",
	6: "tiff_jpeg", # obsolete
	7: "jpeg",
	8: "tiff_adobe_deflate",
	32771: "tiff_raw_16", # 16-bit padding
	32773: "packbits",
	32809: "tiff_thunderscan",
	32946: "tiff_deflate",
	34676: "tiff_sgilog",
	34677: "tiff_sgilog24",
	34925: "lzma",
	50000: "zstd",
	50001: "webp",
	}

and removed "tiff_jpeg" (since it is obsolete, see #4627, let's stop advertising it).

[hugovk]

If there's no special meaning in the order, let's alphabetise them for ease of reference.

[radarhere]

Ok, done

[kmilos]

Just out of curiosity, any reason for the tiff_ prefix while you're at it? I don't think there's anything TIFF specific about lzw, deflate, etc...

[radarhere]

At this point, backwards compatibility? PIL had some with the tiff_ prefix and some without, and I guess #268 and #3555 just went different ways on this.

I've added a commit removing tiff_deflate from the list, as suggested in #5335 (comment)

[kmilos]

Great, thanks!