Add datafacade factory to select avoid flags

include/extractor/class_data.hpp

@@ -17,6 +17,12 @@ static const std::uint8_t MAX_AVOIDABLE_CLASSES = 8;
 inline bool isSubset(const ClassData lhs, const ClassData rhs) { return (lhs & rhs) == lhs; }
 
 inline auto getClassIndexes(const ClassData data) { return util::makeBitRange<ClassData>(data); }
+
+inline auto getClassData(const std::size_t index)
+{
+    BOOST_ASSERT(index <= MAX_CLASS_INDEX);
+    return uint8_t{1} << index;
+}
 }
 }
 

include/extractor/profile_properties.hpp

@@ -79,7 +79,7 @@ struct ProfileProperties
     }
 
     // Check if this classes are avoidable
-    boost::optional<std::size_t> ClassesAreAvoidable(ClassData classes)
+    boost::optional<std::size_t> ClassesAreAvoidable(ClassData classes) const
     {
         auto iter = std::find(avoidable_classes.begin(), avoidable_classes.end(), classes);
         if (iter != avoidable_classes.end())