DSE safety pattern creation fails for non-IEC61508 standards
If a ComponentArchitecture is set to follow a non IEC61508 standard, the creation of safety patterns fails.
The create method shall not expect a SIL enum Value when fetching the SafetyIntegrityLevel annotations of components. Instead, it shall only be checked for an Enumeration type.
See #3944 for a solution to avoid ambigouties w.r.t. different safety standards.
(from redmine: issue id 3945, created on 2020-03-13, closed on 2020-03-17)