- feat
- auto decode http content when response with `Content-Encoding` header
- perf
- add s3 retry code, retry request when catch response code `499`
- add environments for setup retry times: `MEGFILE_MAX_RETRY_TIMES`, `MEGFILE_S3_MAX_RETRY_TIMES`, `MEGFILE_HTTP_MAX_RETRY_TIMES`, `MEGFILE_HDFS_MAX_RETRY_TIMES`, `MEGFILE_SFTP_MAX_RETRY_TIMES`. default is `10`