Fix/metadata input names

[fenos]

What kind of change does this PR introduce?

Bug fix

What is the new behavior?

• accept metadata as input for multi-part uploads
• return object v2 to the GET info request

Additional context

Object V2:

export interface FileObjectV2  {
  id: string
  version: string
  name: string
  bucket_id: string
  updated_at: string
  created_at: string
  last_accessed_at: string
  size?: number
  cache_control?: string
  content_type?: string
  etag?: string
  last_modified?: string
  metadata?: Record<string, any>
}

[coveralls]

Pull Request Test Coverage Report for Build 9954502141

Details

• 32 of 34 (94.12%) changed or added relevant lines in 8 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.02%) to 79.587%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/storage/backend/file.ts	0	2	0.0%

Totals
Change from base Build 9952847632:	-0.02%
Covered Lines:	13195
Relevant Lines:	16421

---

💛 - Coveralls

[github-actions]

🎉 This PR is included in version 1.8.1 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀