Lwpck 3550: Implement and test fixed precision fp8 x bf8 (#2963)

* HasHotLoop is a constexpr

* Remove an unused function

* Remove some unused include statements

* Add implementation and tests for fp8 x bf8 weight preshuffle GEMM

* Add implementation and tests for fp8 x bf8 in CK Tile basic and universal GEMMs

* Remove two barrier calls that HotLoopScheduler already calls

* No need to suppress a variable that hasn't been declared

* Replace six arg_parser arguments with constexpr literals

* Simplify run_gemm_test_prec_type

* The strides don't need to be passed via arg_parser as we use their default values

* The layouts don't need to be passed as arguments twice

* Pass M N and K as regular arguments, not using the argument parser

* We can now remove the argument parser

* Add a common file for precision types to be used in testing

* Convert basic and universal GEMM tests to use gtest

* Make GemmConfig a test parameter, and form test cases as the cartesian product GemmConfigs x PrecTypes

* Add GemmConfigComputeV4 to the GEMM configs to run the universal tests on

* Added a changelog entry

* Add missing copyright statements

* ifndef-define-endif is not needed with pragma once

* Fix a comment

* Add F8 x BF8 tests for CompV4 in test_gemm_pipeline_kernel_types.hpp

* Disable the unreliable test MoeSortingCase4

---------

Co-authored-by: Adam Osewski <19374865+aosewski@users.noreply.github.com>

test/ck_tile/moe_sorting/test_moe_sorting_cases.inc

@@ -95,7 +95,7 @@ TYPED_TEST(TEST_SUITE_NAME, MoeSortingCase3)
     );
 }
 
-TYPED_TEST(TEST_SUITE_NAME, MoeSortingCase4)
+TYPED_TEST(TEST_SUITE_NAME, DISABLED_MoeSortingCase4)
 {
     int tokens       = 99;
     int local_tokens = -1;