docs: Add minimal doxygen setup

Add a Doxyfile and the minimum required tags to the sources to make
anything useful appear in the documentation.

To generate just run: doxygen from the project root or doxygen
./Doxyfile.

Change-Id: Ie60eb1458586dc0a7843dca69e969b78817260d3
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>

.gitignore

@@ -25,3 +25,4 @@ entityManagerTests
 .idea/
 cmake-build-debug/
 Testing
+html

include/EntityManager.hpp

@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+/// \file EntityManager.hpp
 
 #pragma once
 

include/Overlay.hpp

@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+/// \file Overlay.hpp
 
 #pragma once
 #include <nlohmann/json.hpp>

include/Utils.hpp

@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+/// \file Utils.hpp
 
 #pragma once
 

include/VariantVisitors.hpp

@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+/// \file VariantVisitors.hpp
 
 #pragma once
 #include <stdexcept>

include/devices.hpp

@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+/// \file devices.hpp
 
 #pragma once
 #include <boost/container/flat_map.hpp>

src/EntityManager.cpp

@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+/// \file EntityManager.cpp
 
 #include "EntityManager.hpp"
 

src/FruDevice.cpp

@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+/// \file FruDevice.cpp
 
 #include "Utils.hpp"
 

src/Overlay.cpp

@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+/// \file Overlay.cpp
 
 #include "Overlay.hpp"
 

src/Utils.cpp

@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+/// \file Utils.cpp
 
 #include "Utils.hpp"