The xr_accessor emulator by default uses the same chunking as the disk compression. Also accepts a chunk_size argument to make experimentation easier.

Fix bisection methods to return the parameter that fulfills the conditions more close to the target constrains.

Fix function find_direct_relation. Use a slice based on a chunk size instead of selecting a single time-step.
Check that the constrains are fulfilled after a binary search.

Fix in the FilterEmulator that relies on h5py to adapt the encoding keywords from chunksizes to chunks.

This reverts commit 72533305