[feature request] pouch [ps|containers list API] with filter functionality

[fuweid]

Ⅰ. Issue Description

For now, the pouch list containers API doesn't support filter function. It's very useful for the monitor or schedule system. PouchContainer has the following requirements:

• [* ] id - Container’s ID
• [*] name - Container’s
• [*] status - One of created, restarting, running, removing, paused, exited, or dead
• [*] label - An arbitrary string representing either a key or a key-value pair.

For example, we can use the following command to filter container by id:

pouch ps --filter id=fcd6279d2069

Ⅱ. Describe what happened

Ⅲ. Describe what you expected to happen

Ⅳ. How to reproduce it (as minimally and precisely as possible)

Ⅴ. Anything else we need to know?

Ⅵ. Environment:

• pouch version (use pouch version):
• OS (e.g. from /etc/os-release):
• Kernel (e.g. uname -a):
• Install tools:
• Others:

[yyb196]

filter according to label name and value is another requirment, moby only support filter by label euqals, we need filter by label doesn't equal.
eg:

pouch ps --filter "label=color!=blue"

[Ace-Tang]

Already support the follow:

• id - Container’s ID
• name - Container’s
• status - One of created, restarting, running, removing, paused, exited, or dead
• label - An arbitrary string representing either a key or a key-value pair.

also support unequal condition, like pouch ps --filter "label=color!=blue"