Adds doxygen comments to SBF namespace.

Adds doxygen header to header files.

sbf-cpp/Attributes.h

@@ -1,8 +1,19 @@
 #ifndef ATTRIBUTES_H__
 #define ATTRIBUTES_H__
+/***************************************************************************************
+* @file Attributes.h
+*
+* @brief Defines constants and functions for working with attribute groups and attriubtes.
+* @copyright
+* Copyright 2023 Tom Hicks
+* Licensed under the MIT license see the LICENSE file for details.
+***************************************************************************************/
 #include <string>
 #include <vector>
 
+/** \addtogroup Attributes
+ * @{
+*/
 namespace SBF {
     const int kPhysicalAttributeStrengthId = 1;
     const std::string kPhysicalAttributeStrengthLabel = "Strength";
@@ -87,8 +98,21 @@ namespace SBF {
         kAttributeGroupMentalLabel,
     };
 
+    /// @brief Gets the label for the attribute group with the specified id.
+    /// @param attributeGroupId The id of the attribute group to return the label for.
+    /// @return The label of the specified attribute group.
     std::string GetAttributeGroupLabel(int attributeGroupId);
+
+    /// @brief Gets the label for the attribute with the specified group id an attribute id.
+    /// @param attributeGroupId The id of the attribute group to return the label for.
+    /// @param attributeId The id of the attribute withing the group to return the label for.
+    /// @return The label of the specified attribute.
     std::string GetAttributeLabel(int attributeGroupId, int attributeId);
+
+    /// @brief 
+    /// @param attributeGroupId 
+    /// @param attributeId 
+    /// @return 
     std::string GetAttributeLabelAbbreviation(int attributeGroupId, int attributeId);
     std::string GetPhysicalAttributeLabel(int attributeId);
     std::string GetPhysicalAttributeLabelAbbreviation(int attributeId);
@@ -103,4 +127,5 @@ namespace SBF {
     void FillSocialAttributeLabels(std::vector<std::string>& socialAttributeLabels);
     void FillMentalAttributeLabels(std::vector<std::string>& mentalAttributeLabels);
 } // End namespace SBF
+/** @}*/
 #endif // End !defined ATTRIBUTES_H__