Add doxygen docs

include/sta/enum_flags.hpp

@@ -1,4 +1,5 @@
 /**
+ * @file
  * @brief Helper for using enum values as flags.
  */
 #ifndef STA_ENUM_FLAGS_HPP
@@ -13,6 +14,8 @@ namespace sta
 	 * @brief 32-bit flag register with enum type representing single flag bits.
 	 *
 	 * @tparam F    Enum type used for flag bits
+	 *
+	 * @ingroup staCore
 	 */
 	template <typename F>
 	class EnumFlags
@@ -151,6 +154,8 @@ namespace sta
  * @brief Provide overload for operator | to combine enum values.
  *
  * @param enumType  Enum type to overload
+ *
+ * @ingroup staCore
  */
 #define STA_ENUM_FLAGS_OVERLOAD(enumType) \
 	sta::EnumFlags<enumType> operator |(enumType lhs, enumType rhs) \
@@ -162,6 +167,8 @@ namespace sta
  * @brief Declare alias for sta::EnumFlags specialization.
  *
  * @param enumType  Enum type for specialization
+ *
+ * @ingroup staCore
  */
 #define STA_ENUM_FLAGS_ALIAS(enumType) \
 	using enumType ## Flags = sta::EnumFlags<enumType>
@@ -172,6 +179,8 @@ namespace sta
  * @param enumType  Name of new enum class
  * @param value1    First enum value
  * @param ...       Enum values 2 - 32
+ *
+ * @ingroup staCore
  */
 #define STA_ENUM_FLAGS_DECL(enumType, value1, ...) \
 	enum class enumType \