config file of h5s backend

a typical config file of h5s backend for affinity map

{"globalOffset":[0,0,0,0],"globalRange":"CartesianRange{CartesianIndex{4}}(CartesianIndex{4}((9223372036854775807,9223372036854775807,9223372036854775807,9223372036854775807)),CartesianIndex{4}((0,0,0,0)))","chunkSize":[256,256,32,3],"compression":"deflate","h5FilePrefix":"chunk_","blockSize":[2048,2048,256,3],"dir":"~/seungmount/research/Jingpeng/14_zfish/jknet/4x4x4/affinitymap"}