Folding build_tools back into the main repo for simplicity.

src/xenia/hid/premake5.lua

@@ -1,5 +1,5 @@
 project_root = "../../.."
-include(project_root.."/build_tools")
+include(project_root.."/tools/build")
 
 group("src")
 project("xenia-hid")
@@ -12,7 +12,7 @@ project("xenia-hid")
   defines({
   })
   includedirs({
-    project_root.."/build_tools/third_party/gflags/src",
+    project_root.."/third_party/gflags/src",
   })
   local_platform_files()
   removefiles({"*_demo.cc"})
@@ -40,7 +40,7 @@ project("xenia-hid-demo")
     "GLEW_MX=1",
   })
   includedirs({
-    project_root.."/build_tools/third_party/gflags/src",
+    project_root.."/third_party/gflags/src",
   })
   files({
     "hid_demo.cc",