Add support for Content-Disposition

[Xuanwo]

This issue will focus on implement content-disposition support for go-storage.

Description

• content-disposition pair: This pair should be a global pair of go-storage.
  • For write operation: User can use content-dispostion to set the object metadata.
  • For read operation: User can set content-dispostion for this request.
• content-disposition object metadata: This pair should be in object metadata.

Reference

• Linear: https://linear.app/beyondstorage/issue/BS-245/add-support-for-content-disposition

[Xuanwo]

Possible solution: #839