Creating Grouping functionality

[Akilan1999]

Issue Description

When starting a set container possibility to be able to group them. The benefit this would be that when executing plugins the group id would be enough to execute plugin in a set of containers.

Sample commands

• Create group

  p2prc --cgroup

• Add container to group

  p2prc --group <group id> --id <container id>

• View groups

  p2prc --groups

• View specific group

  p2prc --group <group id>

• delete container from group

  p2prc --rmcgroup --group <group id> --id <contianer id> 

• delete entire group

  p2prc --rmgroup <group id>

Note:

The group id will be auto-generated and will will have it's own prefix in the start which will mostly be grp<uuid>.
When a container is removed using the command. p2prc --rm <ip address> --id <container id>. It will be automatically deleted from the groups it exists in.

Sample execution of plugin

p2prc --plugin=<name> --id <container id or group id> 

If the ID is a group id it will execute the Ansibles in the set of containers created. The detection of group id or contianer id will be implemented in the client module.

[Akilan1999]

Partially resolved in PR #61 Fully resolved in PR #64