* Allow cert and private pem information to be passed in via string, eg when obtaining sensitive key details from anisble-vault at runtime
* Allow cert chain body to be passed as a string
* Ensure the new options are set in parameters
* Dont publish the private key in logs
* Set the version_added documentation
* Update documentation inline with review
* Removes file based certificates in favour of string only as suggested in feature review
* Documentation changes as suggested by review