Add rolemaster situational roll modifier backend

RpgRoller.Tests/Services/WorkspaceQueryServiceTests.cs

@@ -142,7 +142,7 @@ public sealed class WorkspaceQueryServiceTests
             throw new NotSupportedException();
         }
 
-        public ServiceResult<RollResult> RollSkill(string sessionToken, Guid skillId, string visibility)
+        public ServiceResult<RollResult> RollSkill(string sessionToken, Guid skillId, string visibility, int situationalModifier = 0)
         {
             throw new NotSupportedException();
         }