Take cluster-type as config instead of setting it from client calls

[shubhamtagra]

This is needed to minimize need of fs classes. Today cluster-type is provided by client in FS which means that there is duplication of FS code across rubix-presto and rubix-hadoop. With cluster-type being provided via config, we can have common module for all FS implementations unless some engine needs specific ones like PrestoS3FS.

This was already done as part of c56fc21 but this commit was later reverted. We can bring back only the cluster-type part from this commit and make changes to have common rubix-fs module