Convert the check_capsules module into a real python module

[Billy Holmes]

Currently the check_capsules is a shell script that makes several assumptions (which is the bug):

• it assumes the user/pass of the satellite is the defaults
• it assumes the API endpoint hostname is the default of satellite.example.com

It's also lacking some functionality that is replaced with an Ansible do-util loop and jq (which is the enhancement):

• It should take a timeout value, and should automatically sleep/wait for the capsules synchronization to be complete.
• it uses jq to expose the variable data - thus it cannot be delegated to a remote host.