[gdal-dev] Default progression order in JP2OpenJPEG driver

[Even Rouault]

> Besides multiple quality layers, I'm wondering about additional benefits
> from configurable Tile Parts indexes (-TP param, helps with browsing and
> ROI retrieval when R- or P-indexed), as well as optional small code blocks
> (-b param, e.g. 32² instead of the default 64², allowing for fine-grained
> ROI retrieval).

I've extended the QUALITY option to specify several values (and thus layers). 
And added TILEPARTS, CODEBLOCK_WIDTH and CODEBLOCK_HEIGHT options.

> 
> Cheers
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