go : improve progress reporting and callback handling (#1024)

go : improve progress reporting and callback handling (#1024)

- Rename `cb` to `callNewSegment` in the `Process` function
- Add `callProgress` as a new parameter to the `Process` function
- Introduce `ProgressCallback` type for reporting progress during processing
- Update `Whisper_full` function to include `progressCallback` parameter
- Add `registerProgressCallback` function and `cbProgress` map for handling progress callbacks

Signed-off-by: appleboy <redacted>