Add Container Actions!

[Gituser143]

Description

Added container actions! We can now pause, unpause, kill, restart, and remove containers with grofer! Add a --all flag to view non-running containers too.

Fixes #108

Type of change

Please delete options that are not relevant.

• [x] New feature (non-breaking change which adds functionality)

Checklist:

• [x] I have read the contribution guidelines and followed it as far as possible.
• [x] I have performed a self-review of my own code (if applicable)
• [x] I have commented my code, particularly in hard-to-understand areas (if applicable)
• [x] I have run go fmt on my code (reference)
• [x] I have made corresponding changes to the documentation (if applicable)
• [x] My changes generate no new warnings
• [x] Any dependent and pending changes have been merged and published

[MadhavJivrajani]

@Gituser143 anything else left on this or shall I merge?

[Gituser143]

@MadhavJivrajani All set! Go for merge!