test: add tls test

[Letty5411]

Signed-off-by: letty [email protected]

Ⅰ. Describe what this PR did

1. add tls data
2. add tls test

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 #1115 into master will increase coverage by 0.73%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1115      +/-   ##
==========================================
+ Coverage   15.54%   16.27%   +0.73%     
==========================================
  Files         172      164       -8     
  Lines        9739     8865     -874     
==========================================
- Hits         1514     1443      -71     
+ Misses       8116     7318     -798     
+ Partials      109      104       -5

Impacted Files	Coverage Δ
cli/inspect/inspector.go	53.52% <0%> (-19.62%)	⬇️
pkg/utils/utils.go	75.64% <0%> (-2.52%)	⬇️
daemon/mgr/container_utils.go	56.19% <0%> (-1.85%)	⬇️
daemon/mgr/system.go	0% <0%> (ø)	⬆️
cli/cli.go	0% <0%> (ø)	⬆️
ctrd/image.go	0% <0%> (ø)	⬆️
cli/main.go	0% <0%> (ø)	⬆️
cli/common_flags.go	0% <0%> (ø)	⬆️
cli/inspect.go	0% <0%> (ø)	⬆️
daemon/mgr/spec_blkio.go	0% <0%> (ø)	⬆️
... and 22 more

[allencloud]

Please add another test case which client uses a incorrect certificate and finally the test case fails. I think with positive and negative case the test would be much more meaningful. @Letty5411

[Letty5411]

@allencloud add it, PTAL

[allencloud]

LGTM