feature: cli support --add-host

[lang710]

Signed-off-by: Lang Chi 21860405@zju.edu.cn

Ⅰ. Describe what this PR did

feature: cli support --add-host

Ⅱ. Does this pull request fix one issue?

NONE

Ⅲ. Why don't you add test cases (unit test/integration test)? (你真的觉得不需要加测试吗？)

Added

Ⅳ. Describe how to verify it

root@compatibility:~# pouch run --add-host=extra:86.75.30.9 busybox grep extra /etc/hosts
86.75.30.9	extra
root@compatibility:~# pouch run --add-host=extra:1.2.3.4 --net=host busybox cat /etc/hosts
127.0.0.1	localhost
::1	localhost ip6-localhost ip6-loopback
fe00::0	ip6-localnet
ff00::0	ip6-mcastprefix
ff02::1	ip6-allnodes
ff02::2	ip6-allrouters
1.2.3.4	extra
root@compatibility:~# pouch run --net=container:other --add-host=name:8.8.8.8 busybox ps
Error: failed to run container: {"message":"Conflicting options: custom host-to-IP mapping and the network mode"}

Ⅴ. Special notes for reviews

[codecov]

Codecov Report

Merging #2919 into master will increase coverage by 0.17%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master    #2919      +/-   ##
==========================================
+ Coverage   67.91%   68.09%   +0.17%     
==========================================
  Files         291      291              
  Lines       18691    18387     -304     
==========================================
- Hits        12694    12520     -174     
+ Misses       4515     4399     -116     
+ Partials     1482     1468      -14     

Flag	Coverage Δ
#criv1alpha2_test	34.69% <0.00%> (+0.19%)	⬆️
#integration_test_0	36.04% <61.11%> (-0.34%)	⬇️
#integration_test_1	35.43% <16.66%> (-0.43%)	⬇️
#integration_test_2	36.04% <13.88%> (-0.28%)	⬇️
#integration_test_3	35.55% <19.44%> (-0.26%)	⬇️
#node_e2e_test	34.08% <0.00%> (+0.12%)	⬆️
#unittest	27.88% <0.00%> (+1.24%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
daemon/config/config.go	67.25% <61.29%> (-2.26%)	⬇️
apis/server/container_bridge.go	90.60% <100.00%> (+0.05%)	⬆️
daemon/mgr/network.go	73.31% <100.00%> (+0.16%)	⬆️
storage/quota/quota.go	6.45% <0.00%> (-7.75%)	⬇️
daemon/mgr/image_save.go	50.00% <0.00%> (-5.56%)	⬇️
pkg/grpc/interceptor/logging.go	72.97% <0.00%> (-4.81%)	⬇️
daemon/mgr/container_list.go	78.64% <0.00%> (-3.72%)	⬇️
pkg/httputils/client.go	48.93% <0.00%> (-3.07%)	⬇️
apis/server/server.go	58.69% <0.00%> (-2.71%)	⬇️
daemon/mgr/image.go	58.83% <0.00%> (-2.34%)	⬇️
... and 77 more

[ZYecho]

@lang710 a little suggestion, and also please fix CI issue.

[ZYecho]

need rebase

[lang710]

need rebase

Thanks a lot, I'll rebase it as soon as possible.

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