1.0.0: Initial release: NeMo Feature Extractor for Android

Kotlin library for extracting mel spectrogram features compatible with
NVIDIA NeMo models. Direct port from NeMoFeatureExtractor-iOS with
identical processing logic:

- FFT via Cooley-Tukey algorithm
- Pre-computed NeMo filterbank (mel_filterbank.bin)
- VAD, ASR, and Speaker model configurations
- Pre-emphasis, Hann windowing, log transform
- Per-feature normalization with Bessel's correction
- Frame padding (padTo parameter)

All tests pass with strict tolerance (max diff < 1e-4).

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

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