Bump version to 0.1.4

New features:
- Optional BLAS acceleration (accelerate for macOS, openblas for Linux)
- Comprehensive benchmark suite for accuracy and performance validation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: raphaelsty

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "fastkmeans-rs"
-version = "0.1.3"
+version = "0.1.4"
 edition = "2021"
 description = "A fast and efficient k-means clustering implementation in Rust, compatible with ndarray"
 license = "Apache-2.0"