Transposition via codec

[TomNicholas]

In https://github.com/fsspec/kerchunk/issues/377#issuecomment-1798683304 @ivirshup suggested that virtual zarr arrays could support

Transpose/ permute dims (re-order chunks + add a transpose codec)

I had forgotten about this suggestion until re-reading just now. We should be able to do that in virtualizarr pretty easily.

[juntyr]

I just ran into this - it would be very useful to be able to e.g. da.transpose("time", "lon", "lat") to a common coordinate order