Add TiffEncoder::set_compression() to allow controlling compression mode

[Shnatsel]

Allow controlling TIFF compression algorithm and predictor in TiffEncoder.

This PR also changes the default from uncompressed to balanced DEFLATE with a horizontal predictor. This is as a more sensible default, and matches imagemagick.

TiffEncoder::set_compression() diverges from the crate's apparent convention of new_with_quality, because I think it's rather silly to call this quality when it's a lossless format. I can change this if you prefer.

I've manually tested the default compression method with wondermagick (which is what I need this for) but I haven't verified the more obscure options like PackBits produce correct results.

[RunDevelopment]

Related: #2251

TiffEncoder::set_compression() diverges from the crate's apparent convention of new_with_quality

Given the way decoders are currently moving towards setters instead of constructor args, I would expect that encoders will move towards setters too. So you're likely just ahead of the trend.

[Shnatsel]

Float compression was implemented in the tiff crate in image-rs/image-tiff#342 but I don't think that should block this PR.

[fintelia]

I'm now wondering if it would it make sense to land support for deflate levels 1-9 in the tiff crate first, and then just have a single Deflate(u8) variant?

[Shnatsel]

I think it would, but it's an API break for the tiff crate.

[197g]

I'm very much okay with that. There's a bunch of API to clean up there anyways (all the direct tag reads on Decoder). Maybe we could fit some more writer cleanup in; if you have found some more after the immediate pain points resolved recently?

[Shnatsel]

Turns out we can expose precise DEFLATE compression level from tiff crate without an API break: image-rs/image-tiff#348

I'll update this PR once the tiff crate PR is merged.

[Shnatsel]

Ah, sorry, that wasn't sufficient after all. I've opened image-rs/image-tiff#351 for a semver-breaking change instead.

[Shnatsel]

Marking as draft pending upstream work in tiff crate, notably image-rs/image-tiff#357

[Shnatsel]

This is now done, but I'm keeping it as a draft until the tiff crate with the necessary changes is released to crates.io