[DRAFT] Add support to fp16 + compute fp16 and bf16 + compute bf16 contractions

[evedovelli]

Proposed changes

Enables hipTensor to access the WMMA HW functionalities for datatype FP16 + compute type FP16 and datatype BF16 + compute type BF16 on gfx11 and gfx12.

The low level implementation already existed, and this PR adds the interface to the WMMA functions to API used by hipTensor.

Checklist

• I have added tests relevant to the introduced functionality, and the unit tests are passing locally
• I have added the test to REGRESSION_TESTS list defined at the top of CMakeLists.txt in tests/CMakeLists.txt, IF the test takes more than 30 seconds to run.
• I have added inline documentation which enables the maintainers with understanding the motivation
• I have removed the stale documentation which is no longer relevant after this pull request
• (If this change is user-facing) I have added release notes which provide the end users with a brief summary of the improvement from this pull request
• I have run clang-format on all changed files
• Any dependent changes have been merged