DeFiMath v1.0.3 released - Library and benchmark suite split into separate repos

The DeFiMath repository has been split. Going forward:

• defimath — the focused Solidity library: math primitives, options pricing, Greeks, IV solver. This is what you npm install.
• defimath-compare — the benchmark harness that compares DeFiMath against other Solidity math libraries. Lives at MerkleBlue/defimath-compare.

The split keeps the library itself small and dependency-light. Comparisons, credits, and benchmark scripts have all been moved out.