Feat: Add url option when get public image url

[tranhoangvuit]

What kind of change does this PR introduce?

Add url option when get public image url

What is the current behavior?

Refer to JS lib: supabase/storage-js#145

What is the new behavior?

We have added the UrlOptions parameter to support this new feature. By leaving it empty, we ensure backward compatibility with the previous version.

result := storage_go.GetPublicUrl("bucket", "file.jpeg", storage_go.UrlOptions{
  Transform: {
    Width: 100,
    Height: 100,
  },
  Download: true,
})

origin:

result := storage_go.GetPublicUrl("bucket", "file.jpeg")