Add ruby cloud integration support

[Ricky-Thomas]

Adding support for the following endpoints:

AWS

• GET (list)
• GET (list available namespaces)
• POST (create account config)
• DELETE (delete account config)
• PUT (generate external ID)
• PUT (update account)

AWS LOGS

• GET (list AWS logs integrations)
• POST (add aws log lambda ARN)
• DELETE (delete lambda ARN config)
• POST (aws integration logs check lambda async) - check if lambda_arn exists within account
• GET (list log services)
• POST (AWS Integration Logs check Services Async)
• POST (save services - this is what needs to run after the previous one to save the services they want for the recently added ARN)

AZURE ENDPOINTS

• GET (list all azure integrations)
• POST (create an azure integration)
• DELETE (delete an azure integration)
• POST (update host filters)
• PUT (update account)

GCP ENDPOINTS

• GET list
• POST create
• DELETE delete
• PUT (set GCP integration automute.) This also updates host filters. And is truly the only use case for updating a config here. It will allow you to update other fields as well, but not project_id and client_email which are the required fields. If those fields are to be updated an entirely new config should be created. We need to update the docs to reflect this info.

ORIGINAL PR was here: #190
I messed up the history of that one with a rebase, but fixed in this branch. Unfortunately the comments from @mattsp1290 and @zippolyte couldn't be transferred over but their comments were addressed here.

[gzussa]

Great job.
Some (maybe) naive questions here and there. Let's clean names as well so we are consistent within this SDK but also cross SDK. We should always have integration when mentioning providers.
regarding your testing scenarios. I trust you so thay are as complete as possible 😄

[Ricky-Thomas]

@gzussa Thanks for the feedback here. I've updated the PR and this is ready for another look. Thanks!

[gzussa]

Thanks for adding this.