Add gflags to projects that need it only

src/xenia/debug/ui/premake5.lua

@@ -34,6 +34,7 @@ project("xenia-debug-ui")
   })
   includedirs({
     project_root.."/third_party/elemental-forms/src",
+	project_root.."/build_tools/third_party/gflags/src",
   })
   recursive_platform_files()
   files({
@@ -48,6 +49,7 @@ project("xenia-debug-ui")
     project_root.."/third_party/elemental-forms",
   })
 
+--[[
   filter("configurations:Checked")
     local libav_root = "../third_party/libav-xma-bin/lib/Debug"
     linkoptions({
@@ -60,6 +62,7 @@ project("xenia-debug-ui")
       libav_root.."/libavcodec.a",
       libav_root.."/libavutil.a",
     })
+]]
 
   filter("platforms:Windows")
     debugdir(project_root)