update GPUPerAPICounters.h to include the headers it needs

Author: chesik-amd

Build/VS2015/GPUPerfAPICounters.vcxproj

@@ -42,6 +42,11 @@
     <Import Condition="'$(SolutionName)'=='GPUPerfAPI-Full'" Project="$(BaseDir)GPA-Internal/Build/VS2015/GPA-Deliverable.props" />
     <Import Condition="'$(SolutionName)'=='GPUPerfAPI-Full'" Project="$(BaseDir)GPA-Internal/Build/VS2015/GPA-Internal.props" />
   </ImportGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalIncludeDirectories>..\..\Src\GPUPerfAPICounterGenerator;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ClCompile>
+  </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="..\..\Src\GPUPerfAPICounters\GPUPerfAPICounters.cpp" />
   </ItemGroup>

Src/GPUPerfAPICounters/GPUPerfAPICounters.h

@@ -8,6 +8,10 @@
 #ifndef _GPUPERFAPI_COUNTERS_H_
 #define _GPUPERFAPI_COUNTERS_H_
 
+#include "GPUPerfAPITypes-Private.h"
+#include "GPAICounterAccessor.h"
+#include "GPAICounterScheduler.h"
+
 /// macro to export public API functions
 #ifndef GPUPERFAPI_COUNTERS_DECL
     #ifdef _WIN32