[Goal] Support Andrej Karpathy's microgpt.py

[Nucs]

Andrej Karpathy, renowned AI researcher, has released a piece of art - microgpt full implementation in 200 lines of pure numpy-only.
We will ensure we have 100% support with exactly same reproducible results.
Art should be cherished and honored.

https://gist.github.com/karpathy/8627fe009c40f57531cb18360106ce95

[Nucs]

Related NEPs: This goal may require multiple NEP implementations:

• [NEP50 NEP52 NEP56] NumPy 2.0 Breaking Changes #547 [NEP50 NEP52 NEP56] - NumPy 2.0 compatibility (type promotion, API)
• [NEP10 NEP38 NEP54] SIMD and Iterator Performance #548 [NEP10 NEP38 NEP54] - Performance optimizations
• [NEP05 NEP20] Generalized Universal Functions #551 [NEP05 NEP20] - Generalized ufuncs for matmul patterns