Include third party script for license checking and amending

Include third party script for license checking and amending

The following commit message are generated automatically by git-subrepo
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git subrepo clone git@github.com:openzero-zte/License.git third-party/License

subrepo:
  subdir:   "third-party/License"
  merged:   "61489da"
upstream:
  origin:   "git@github.com:openzero-zte/License.git"
  branch:   "master"
  commit:   "61489da"
git-subrepo:
  version:  "0.3.0"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "988f8c8"
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Change-Id: I8eab86a8ce3f26995af3e3535f31f361b4826a8b
Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>