GitLab

* [Refactor] Update JIT kernel functions and streamline GEMM tests

* Renamed and refactored matmul and run_gemm functions to matmul_kernel_jit and run_gemm_kernel_jit for clarity.
* Removed redundant JIT decorator from the matmul function, ensuring it is applied only to the kernel function.
* Updated test function names to reflect changes in the kernel functions, enhancing consistency and readability.
* Cleaned up commented-out code and unnecessary imports to improve overall code quality.

* Update main function call in GEMM test to use tilelang testing framework

* Update README and example scripts to include JIT decorator comments

* Added comments in README.md and various example scripts to indicate the use of the @tilelang.jit decorator for returning torch functions.
* Removed redundant comments that previously instructed to add the decorator, streamlining the documentation and improving clarity.

* Update GEMM test parameters for improved performance

* Set num_stages to 0 and adjusted matrix dimensions in test functions to enhance performance and consistency across GEMM tests in test_tilelang_kernel_gemm.py.