Add support for SMB File Rename if same share

[fedux]

Description

If the file to be moved in ActionMove is in the same SMB share it can be renamed.

Motivation and Context

Copying a file instead of renaming is inefficient as it has to be transferred twice over the network. This makes move operations a server side operation.

How Has This Been Tested?

Tested in my own setup.

Types of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the Code guidelines of this project
• My change requires a change to the documentation, either Doxygen or wiki
• I have updated the documentation accordingly
• I have read the CONTRIBUTING document
• I have added tests to cover my change
• All new and existing tests passed

[Paxxi]

Thank you. Krypton is feature complete at this point so I don't think it's a good idea to merge this.

We rely on several different smb implementations so ensuring that this does not introduce any bugs takes a lot of effort.
We currently build against, Native windows, smb pre-gpl3, smb gold, libdsm that I know of.

Seems like a good candidate to include in master though where it has time to get proper testing.

[fedux]

Fair enough, rebased onto master.