[feat]: add format option for pouch ps and integrate/unit test

[cxz66666]

Ⅰ. Describe what this PR did

similar as #2844
for the issue #2827. CLI compatibility between Pouch and Docker

solve the pouch ps --format option.
if other command(such as pouch history/images/network/volume/stats/version) also need --format option.
can done similarly

Ⅱ. Does this pull request fix one issue?

fixes #2827,

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

have add unit test and integration test

Ⅳ. Describe how to verify it

root@ahsh-main:~/go/src/github.com/alibaba/pouch# pouch ps
Name ID Status Created Image Runtime
58b7de 58b7de Up 40 minutes 40 minutes ago registry.hub.docker.com/library/ubuntu:latest runc

root@ahsh-main:~/go/src/github.com/alibaba/pouch# pouch ps -a --format "table {{.ID}}\t{{.Status}}\t{{.Created}}"
ID Status Created
58b7de Up 11 seconds 11 seconds ago

root@ahsh-main:~/go/src/github.com/alibaba/pouch# pouch ps -a --format "table {{.ID}}\t{{.Status}}\t{{.Created}}\t{{.Name}}"
ID Status Created Name
58b7de Up 40 minutes 40 minutes ago 58b7de

root@ahsh-main:~/go/src/github.com/alibaba/pouch# pouch ps -a --format "raw"
Name:58b7de
ID:58b7de
Status:Up 4 seconds
Created:4 seconds ago
Image:registry.hub.docker.com/library/ubuntu:latest
Runtime:runc

Ⅴ. Special notes for reviews

[CLAassistant]

All committers have signed the CLA.

[rudyfly]

LGTM