add aie-chess-simulation as examples for single core chess simulation in BFP16 and BF16

[ChengyueWang]

This PR adds two comprehensive examples demonstrating single-core chess simulation using reduced-precision data types. The examples are located in /tools/aie-chess-simulation/ and include:

• simple_test/: Basic AIE chess simulation example for testing simulation functionality
• mixed_bfp16_bf16/: Advanced implementation combining BFP16 (Block Floating Point 16-bit) and BF16 (Brain Floating Point 16-bit) formats

Compile the AIE chess simulation examples: make

[fifield]

There are many tests like this in the tests/unit_tests folder. Can we put this there or is it intended as documentation? Can we also update the test to build with aiecc.py and to use the cluster level simulator (aiesimulator)?

[jgmelber]

There are many tests like this in the tests/unit_tests folder. Can we put this there or is it intended as documentation? Can we also update the test to build with aiecc.py and to use the cluster level simulator (aiesimulator)?

👍

This is also meant to serve as documentation. However it maybe could/should live in the tests directory and land in CI to eliminate bitrot