feat: enhance AudioCLIPEncoder support

[winstonww]

This PR:
- [x] adds a local AudioCLIPCrafter executor to adjust sample rate of audio before passing the blob to AudioCLIPEncoder for processing

• Add clip option to test_audiio_to_audio_search.py

Thanks.

[winstonww]

Removing AudioCLIPCrafter because sample rate adjustment should be done in AudioCLIPEncoder. It does not make much sense for AudioCLIPEnocder to process audio at a sample rate different from the target sample rate. Migrating this logic to AudioCLIPEncoder will safeguard users from providing audios with wrong sample rate.

[nan-wang]

LGTM👍

[nan-wang]

Migrating this logic to AudioCLIPEncoder will safeguard users from providing audios with wrong sample rate.
Good point!