Get Project Issue Security Scheme

Returns the [issue security scheme](https://confluence.atlassian.com/x/J4lKLg) associated with the project.**[Permissions](#permissions) required:** *Administer Jira* [global permission](https://confluence.atlassian.com/x/x4dKLg) or the *Administer Projects* [project permission](https://confluence.atlassian.com/x/yodKLg).