docs: update file level doxygen blocks (#1258)

tools/audio.cpp

@@ -1,7 +1,7 @@
-//
-// Created by loki on 1/24/20.
-//
-
+/**
+ * @file tools/audio.cpp
+ * @brief todo
+ */
 #include <audioclient.h>
 #include <mmdeviceapi.h>
 #include <roapi.h>

tools/ddprobe.cpp

@@ -1,3 +1,7 @@
+/**
+ * @file tools/ddprobe.cpp
+ * @brief todo
+ */
 #include <d3d11.h>
 #include <dxgi1_2.h>
 

tools/dxgi.cpp

@@ -1,7 +1,7 @@
-//
-// Created by loki on 1/23/20.
-//
-
+/**
+ * @file tools/dxgi.cpp
+ * @brief todo
+ */
 #include <d3dcommon.h>
 #include <dxgi.h>
 

tools/sunshinesvc.cpp

@@ -1,3 +1,7 @@
+/**
+ * @file tools/sunshinesvc.cpp
+ * @brief todo
+ */
 #define WIN32_LEAN_AND_MEAN
 #include <Windows.h>
 #include <wtsapi32.h>