[NFC][mlir][mesh,shard] Fixing misnomers in mesh dialect, renaming 'mesh' dialect to 'shard' (#150177)

Dialect to 'shard' (discourse 87053)
  - dialect name mesh -> shard
  - (device) mesh -> (device) grid
  - spmdize -> partition

A lot of diffs, but simple renames only.

@tkarna @yaochengji

GitOrigin-RevId: b2d4963ee925b014f39231e0faac746630711162
111 files changed
tree: d4bd0161e3de9763283aa572b8df0e06c0a2757d
  1. benchmark/
  2. cmake/
  3. docs/
  4. examples/
  5. include/
  6. lib/
  7. python/
  8. test/
  9. tools/
  10. unittests/
  11. utils/
  12. .clang-format
  13. .clang-tidy
  14. CMakeLists.txt
  15. LICENSE.TXT
  16. README.md
README.md

Multi-Level Intermediate Representation

See https://mlir.llvm.org/ for more information.