[New Arch] Copy file/folder operation

[abelgardep]

Synchronization epic: #2818

AC:

• Copy remote in server.
• Local: check if file is downloaded to move to new location. Check if new version is available in case of file already downloaded.
• In case of copy folder: check if items inside are downloaded, if they have newer versions, update.
• Check if the copied file is downloaded, in case the source one is downloaded.

QA Checks

https://github.com/owncloud/QA/blob/master/Mobile/Android/Sync/Copy.md

TASKS

• Research (if needed)
• Create branch new_sync/copy
• Development tasks
  • Create new usecase -> CopyFileUseCase
  • Add copyFile to repository
  • Add copyFile to RemoteDataSource (Call CheckRemotePath before CopyRemoteFileOperation to check if folder already exists?)
  • Migrate CopyRemoteFileOperation to kotlin
  • Update database
  • Copy local files/folders
  • Update DocumentsProvider
  • Error handling
  • Unit tests
• Code review and apply changes requested
• Design test plan
• QA
• Merge branch new_sync/copy into new_arch/sync

PR

• App [New arch] Copy #3253
• Library (if needed) [New arch] Copy android-library#406

[abelgardep]

Related to AC:

Copy remote in server.
Local: check if file is downloaded to move to new location. Check if new version is available in case of file already downloaded.
In case of copy folder: check if items inside are downloaded, if they have newer versions, update.
Check if the copied file is downloaded, in case the source one is downloaded.

I think that it could be enough to copy files remotely and to update the database accordingly. We could avoid some problems that way instead of copying every downloaded file.

[abelgardep]

Will be tested within synchronization epic