[FEATURE] Support DFS as the shuffle data storage

[Gustfh]

Add support DFS for the shuffle data storage, such as HDFS, Alluxio. so rss will not care about the disk healthy, the replication. and also the DFS could take the pressure of shuffle read.

[FMX]

@Gustfh Hi, thanks for your advice.
We had supported HDFS before and found that performance on HDFS is unacceptable.
We are working on supporting AliLFS now.

[Gustfh]

i think we should open an abstract for dfs storage or compose storage, so other people could implement different storage as their requirement.

[FMX]

OK, I think you are right. Let me propose a draft.

[FMX]

Check #146 and I'll close this pr.