Add mode filed to this message:
https://git.onedata.org/projects/VFS/repos/clproto/browse/proto/dbsync_messages.proto#71
and handle its translation in op_worker.

Set field here:
https://git.onedata.org/projects/VFS/repos/op-worker/browse/src/modules/dbsync/dbsync_communicator.erl#174 depending on usage of compression here https://git.onedata.org/projects/VFS/repos/op-worker/browse/src/modules/dbsync/dbsync_communicator.erl#179

Use value in dbsync_utils:uncompress on receiving provider.