[CK Tile] Int8 Support on CK Tile GEMM (#2267)

* updates to support int8 in 03_gemm example

* added comments, using aliases, helper functions

* test(gemm_universal): add test cases for int8 gemm pipeline

* fix(test_gemm): fix for failing test unit test for int8

* test(ck_tile): add int8 unit test for gemm universal

* refactor(gemm_universal): GPU reference verification for GEMM code improved

* style(gemm_universal): removed extra comments and did clang format

* merging recent changes to universal gemm to tile_engine

* ck tile engine integration work

* feat(tile_engine): add int8 support to tile engine ops/gemm

* feat(tile_engine): added 32 32 16 mfma instances to tile engine for int8

* style: Format code with clang-format-12

* refactor(tile_engine): address review comments

* style: removed unhelpful comments & unused variables.

* build: tile engine uses default config

* feat: add int8 support for CK_TILE GEMM

* style: added trailing commas to codegen_utils.py

* refactor: tile engine

* refactor: formatting and code review

* refactor: code formatting for python files

* fix: suppress build warning

* add support for gfx950

* refactor:KWarpTile size in gemms util

* Fix the branch and wrap up the k warp tile

* Add bf8 integration

* refactor: clang format and rebase

---------

Co-authored-by: zjli2013 <leezhengjiang@gmail.com>
Co-authored-by: AviralGoelAMD <aviral.goel@amd.com>
Co-authored-by: Khushbu Agarwal <khuagarw@amd.com>

include/ck_tile/host/host_tensor.hpp

@@ -722,6 +722,8 @@ struct HostTensor
                     file << type_convert<float>(itm) << std::endl;
                 else if(dtype == "int")
                     file << type_convert<int>(itm) << std::endl;
+                else if(dtype == "int8_t")
+                    file << static_cast<int>(type_convert<ck_tile::int8_t>(itm)) << std::endl;
                 else
                     // TODO: we didn't implement operator<< for all custom
                     // data types, here fall back to float in case compile error