Audio::Chromaprint support

[xsawyerx]

• [ ] chromaprint_get_version
• [x] chromaprint_new
• [x] chromaprint_free
• [ ] chromaprint_get_algorithm (implement, since it's not available)
• [ ] chromaprint_set_option
• [ ] chromaprint_start
• [ ] chromaprint_feed
• [ ] chromaprint_finish
• [ ] chromaprint_get_fingerprint
• [ ] chromaprint_get_raw_fingerprint
• [ ] chromaprint_get_fingerprint_hash
• [ ] chromaprint_encode_fingerprint
• [ ] chromaprint_decode_fingerprint
• [ ] chromaprint_hash_fingerprint
• [ ] chromaprint_dealloc