Folding build_tools back into the main repo for simplicity.

src/xenia/base/premake5.lua

@@ -1,5 +1,5 @@
 project_root = "../../.."
-include(project_root.."/build_tools")
+include(project_root.."/tools/build")
 
 project("xenia-base")
   uuid("aeadaf22-2b20-4941-b05f-a802d5679c11")
@@ -8,7 +8,7 @@ project("xenia-base")
   defines({
   })
   includedirs({
-    project_root.."/build_tools/third_party/gflags/src",
+    project_root.."/third_party/gflags/src",
   })
   local_platform_files()
   removefiles({"main_*.cc"})
@@ -18,7 +18,7 @@ project("xenia-base")
 
 test_suite("xenia-base-tests", project_root, ".", {
   includedirs = {
-    project_root.."/build_tools/third_party/gflags/src",
+    project_root.."/third_party/gflags/src",
   },
   links = {
     "xenia-base",