bugfix: fix exec not exit with correct exit code

[Ace-Tang]

add ContainerExecInspect client api, refactor container
part in client package.
make exec exit with correct exit code.

Fixes: #344.

Signed-off-by: Ace-Tang [email protected]

Ⅰ. Describe what this PR did

add ContainerExecInspect client api, refactor container
part in client package.
make exec exit with correct exit code.

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

[allencloud]

CI fails. PTAL. @Ace-Tang

[allencloud]

Could you rebase this PR to the latest branch master and fix the ci failure. Thanks a lot. @Ace-Tang

[codecov-io]

Codecov Report

Merging #1128 into master will decrease coverage by 1.14%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #1128      +/-   ##
==========================================
- Coverage   16.44%   15.29%   -1.15%     
==========================================
  Files         182      173       -9     
  Lines       11295    10679     -616     
==========================================
- Hits         1857     1633     -224     
+ Misses       9302     8926     -376     
+ Partials      136      120      -16

Impacted Files	Coverage Δ
client/container.go	0% <ø> (ø)	⬆️
client/container_exec.go	0% <0%> (ø)
cli/exec.go	0% <0%> (ø)	⬆️
daemon/mgr/image_utils.go	0% <0%> (-40%)	⬇️
pkg/reference/def.go	33.33% <0%> (-11.12%)	⬇️
client/client.go	58.94% <0%> (-7.06%)	⬇️
pkg/meta/boltdb.go	60.56% <0%> (-5.71%)	⬇️
daemon/mgr/container_types.go	25.31% <0%> (-4.54%)	⬇️
daemon/mgr/cri_utils.go	28.85% <0%> (-0.46%)	⬇️
apis/server/container_bridge.go	0% <0%> (ø)	⬆️
... and 39 more

[fuweid]

LGTM

[fuweid]

Fixed #1277