i18n(sr_SR): add Montenegrin translation

UI/SOGoUI/SOGoFolderAdvisory.h

@@ -143,6 +143,18 @@
 @interface SOGoFolderLithuanianRemovalAdvisory : SOGoFolderRemovalAdvisory
 @end
 
+@interface SOGoFolderMacedonianAdditionAdvisory : SOGoFolderAdditionAdvisory
+@end
+
+@interface SOGoFolderMacedonianRemovalAdvisory : SOGoFolderRemovalAdvisory
+@end
+
+@interface SOGoFolderMontenegrinAdditionAdvisory : SOGoFolderAdditionAdvisory
+@end
+
+@interface SOGoFolderMontenegrinRemovalAdvisory : SOGoFolderRemovalAdvisory
+@end
+
 @interface SOGoFolderNorwegianBokmalAdditionAdvisory : SOGoFolderAdditionAdvisory
 @end
 

UI/SOGoUI/SOGoFolderAdvisory.m

@@ -315,6 +315,18 @@
 @implementation SOGoFolderLithuanianRemovalAdvisory
 @end
 
+@implementation SOGoFolderMacedonianAdditionAdvisory
+@end
+
+@implementation SOGoFolderMacedonianRemovalAdvisory
+@end
+
+@implementation SOGoFolderMontenegrinAdditionAdvisory
+@end
+
+@implementation SOGoFolderMontenegrinRemovalAdvisory
+@end
+
 @implementation SOGoFolderNorwegianBokmalAdditionAdvisory
 @end