Squashed 'BuildTools/' content from commit 9dd603c

git-subtree-dir: BuildTools
git-subtree-split: 9dd603cd3f0f38bb6deeb306b55034e4e8d8c0b5
Merge commit 'd1ab46ddf856e4b3024ecee2f5de1e8fa4eb2eca' as 'BuildTools'