VideoConfig: Add flag for whether the system supports setting object names

Source/Core/VideoBackends/Null/NullBackend.cpp

@@ -59,6 +59,7 @@ void VideoBackend::InitBackendInfo()
   g_Config.backend_info.bSupportsCoarseDerivatives = false;
   g_Config.backend_info.bSupportsTextureQueryLevels = false;
   g_Config.backend_info.bSupportsLodBiasInSampler = false;
+  g_Config.backend_info.bSupportsSettingObjectNames = false;
 
   // aamodes: We only support 1 sample, so no MSAA
   g_Config.backend_info.Adapters.clear();

Source/Core/VideoBackends/Software/SWmain.cpp

@@ -88,6 +88,7 @@ void VideoSoftware::InitBackendInfo()
   g_Config.backend_info.bSupportsCoarseDerivatives = false;
   g_Config.backend_info.bSupportsTextureQueryLevels = false;
   g_Config.backend_info.bSupportsLodBiasInSampler = false;
+  g_Config.backend_info.bSupportsSettingObjectNames = false;
 
   // aamodes
   g_Config.backend_info.AAModes = {1};

Source/Core/VideoCommon/VideoConfig.h

@@ -234,6 +234,7 @@ struct VideoConfig final
     bool bSupportsCoarseDerivatives = false;
     bool bSupportsTextureQueryLevels = false;
     bool bSupportsLodBiasInSampler = false;
+    bool bSupportsSettingObjectNames = false;
   } backend_info;
 
   // Utility