feature: update lock policy for container management

[allencloud]

Signed-off-by: Allen Sun allensun.shl@alibaba-inc.com

Ⅰ. Describe what this PR did

In the container manager, code usually use

c.Lock()
defer c.Unlock()

to avoid race condition. While I think it is not so preferred since it does have serious affect on performance.

This PR dis three types of things:

• encapsulate all state management into a single file container_state.go;
• make container.Lock much more grained granularity.
• change log format to make it more explicit.

Ⅱ. Does this pull request fix one issue?

fixes #1244

Ⅲ. Describe how you did it

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[allencloud]

This pull request still do no lock on c.Write(mgr.Store) which seems that marshalling a struct with sync.Mutex may cause block.

[allencloud]

Thanks godness, this pr has passed all the ci tests. While to avoid if this is coincidence, I re-trigger the test to do a double check.

[HusterWan]

LGTM