hbase fs rest 用于hbase fs的HTTP REST API

hbase-fs-rest is a InputStream/OutputStream lib for reading & writing file on . It's not very convenient for end-user. So, we build a HTTP-REST Service to simplify the operation. Basically, we use HEAD, GET, PUT, POST, DELETE to manipulate files. The request like this: curl -X HEAD http://${host}:${port}/${version}/fs/${identifier}?${paras} OP PARAS DESC HEAD Test if the file exists, 404 or 200 G