Please add support for the license APIs

[mk23]

• https://developer.pagerduty.com/api-reference/10230a10c519e-list-license-allocations
• https://developer.pagerduty.com/api-reference/4c10cb38f7381-list-licenses

[gerardocorea]

Wouldn't mind take a stab at this. Is there any specific process to confirm this would be approved if the implementation is accepted?

[ChuckCrawford]

@gerardocorea : if you put up a PR we will do our best to get it reviewed and merged. You can @me when you get it done...

[gerardocorea]

@ChuckCrawford opened a PR for this request.