GitLab

* [Example] Update kernel compilation in examples to use @tilelang.jit

- Refactored multiple examples to eliminate the use of `tilelang.compile` for kernel creation, directly invoking the functions instead.
- Added `@tilelang.jit` decorators with appropriate output indices to enhance performance and maintainability.
- Improved code clarity by simplifying the kernel invocation process across various examples, ensuring consistency in how kernels are defined and executed.

* format

* Update example_tilelang_sparse_gqa_decode_varlen_indice.py

* Update example_dequant_gemm_fine_grained.py

* Update example_gemm_autotune.py

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Co-authored-by: Lei Wang <34334180+LeiWang1999@users.noreply.github.com>

* Introduced `example_grouped_gemm_fwd.py` and `example_grouped_gemm_bwd.py` to demonstrate grouped matrix multiplication with forward and backward operations.
* Implemented functions for grouped GEMM, input construction, and validation against PyTorch's implementation.
* Added command-line argument parsing for flexible input configuration, including batch sizes and matrix dimensions.
* Included a test function to validate the functionality with various input scenarios.