feature: finish top interface

[HusterWan]

Signed-off-by: Michael Wan zirenwan@gmail.com

Ⅰ. Describe what this PR did

finish top command

root@osboxes:test (zr/finish-top *) -> pouch top 44f675
UID     PID      PPID     C    STIME    TTY    TIME        CMD
root    28725    28714    0    3月14     ?      00:00:00    sh

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how you did it

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov-io]

Codecov Report

Merging #900 into master will increase coverage by 0.22%.
The diff coverage is 35.13%.

@@            Coverage Diff             @@
##           master     #900      +/-   ##
==========================================
+ Coverage   14.21%   14.43%   +0.22%     
==========================================
  Files         118      118              
  Lines        7184     7253      +69     
==========================================
+ Hits         1021     1047      +26     
- Misses       6076     6117      +41     
- Partials       87       89       +2

Impacted Files	Coverage Δ
daemon/mgr/container.go	2.68% <0%> (-0.09%)	⬇️
cli/top.go	0% <0%> (ø)	⬆️
ctrd/container.go	0% <0%> (ø)	⬆️
daemon/mgr/container_utils.go	60.82% <86.66%> (+11.57%)	⬆️

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[allencloud]

LGTM