GitLab

* [Enhancement] Update KernelParam to use tvm.DataType directly and add torch_dtype conversion method

- Changed dtype in KernelParam from torch.dtype to tvm.DataType to support a wider range of data types and prevent information loss during conversions.
- Added a new method, torch_dtype, to convert tvm.DataType back to torch.dtype for tensor creation.
- Updated various adapters to utilize the new torch_dtype method for parameter type conversion during initialization.

* [Enhancement] Refactor CUDA type handling and add support for FP4 and FP8 types

- Renamed functions for clarity: GetFP8Type, GetFP6Type, and GetFP4Type are now GetTileLangFP8Type, GetTileLangFP6Type, and GetTileLangFP4Type respectively.
- Enhanced FP4 type handling to support additional lane sizes (2, 4, 8, 16, 32, 64).
- Updated CUDA code generation to include new FP8 and FP4 types, ensuring proper type handling in PrintType and related functions.
- Introduced new structures for FP8 types in cuda_fp8.h to facilitate better memory management and type packing.
- Added methods in KernelParam and tensor utilities to recognize and handle float4 types, improving compatibility with PyTorch.
- Enhanced logging for debugging purposes in various CUDA functions to track type handling and memory operations more effectively.

* lint fix

* Remove unnecessary logging statements from CUDA code generation and delete obsolete matrix multiplication test file.

* [Enhancement] Add support for FP4 and FP8 types in CUDA code generation

- Enhanced PrintVecElemLoad and PrintVecElemStore functions to handle new FP4 types.
- Updated arg_binder to allow float4 to match int8 at runtime, improving compatibility with PyTorch.
- Modified loop_vectorize to account for buffer dtype lanes in vectorization calculations.
- Refactored tensor type mapping to support new float4 and float8 types, ensuring correct type handling in tensor operations.
- Added tests for FP4 and FP8 copy operations to validate functionality and integration with existing workflows.

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Co-authored-by: Zhiwen Mo <zm125@ic.ac.uk>