1.5

Adds multiple destination support to uploader (uses threads)

Added

• multi_file_upload()
• UploadResult and UploadResults types, returned by multi_file_upload()
• UploadThread and UploadManager for additional control
• delete_after creating a .delete_on marker file containing an UTC date to delete file on.

Changed

• check_and_upload_file, upload_file, watched_upload, upload_file_retrying moved from upload module to api module.
• Log messages now includes thread name
• delete_after renamed to wasabi_delete_after as it was a wasabi-specific feature.
• ⚠️ delete_after param reused for marker file feature