Add 'Android/CMake/' from commit 'a8aca8ed1be03b3405c09bfe7ab2869f31ea143a'

git-subtree-dir: Android/CMake
git-subtree-mainline: d16712ce9f0f16b68a27a3c7a3349a2b17492529
git-subtree-split: a8aca8ed1be03b3405c09bfe7ab2869f31ea143a
upgrading from master branch
adding android toolchain from android-cmake
crossbuild to android working on linux
added android toolchain support