[+] update tools

Author: JiepengTan

CopySrc2Test

@@ -8,6 +8,7 @@ find  ./Engine.Editor/ -name '*.meta' -type f | xargs  rm -f
 find  ./Engine.View/ -name '*.meta' -type f | xargs  rm -f
 find  ./Engine.LockstepEngine/ -name '*.meta' -type f | xargs  rm -f
 rm -rf ./Test.Unity/Assets/*
+mkdir -p ./Test.Unity/Assets/
 cp -rf ./Engine.Editor ./Test.Unity/Assets/
 cp -rf ./Engine.View ./Test.Unity/Assets/
 cp -rf ./Engine.LockstepEngine ./Test.Unity/Assets/