[StreamExecutor] Add Doxygen main page

Reviewers: jlebar

Subscribers: jprice, parallel_libs-commits

Differential Revision: https://reviews.llvm.org/D24066

llvm-svn: 280277
GitOrigin-RevId: 5b363dd29413abe2ced25f88e290bc63bf2700e0
7 files changed
tree: 034f4f592aa90307416196edd501c5deb864e225
  1. .arcconfig
  2. .clang-format
  3. README.rst
  4. streamexecutor/