Read compressed CZI and LSM files

[MPIBR-masneris]

The CZIReader and LSMReader assume at the moment that the data is stored in uncompressed format. It would be nice to implement in the reading the function the possibility to read compressed data and uncompress it on the fly... it would allow us to save compressed files and occupy less space on the data server.

The two file format specifications describe in detail how the files are compressed, it shouldn't be difficult to implement a method to uncompress the data (basically, check the size of the compressed chunk, read that amount of data from disk, apply the decompression algorithm)