Support more APIs to the module

[ctmcisco]

Hello Clint. I recently found your module and think it's awesome. I noticed it was designed for working with Domains and DNS records only. If you need help adding more functionality I would like to contribute. I have a working commandlet for retrieving ssl certificates for example. Let me know if you would be interested and I will submit a pull request. Also do you have any plans on deploying the module to the powershell gallery?