Handle copying/disconnecting/crashing properly

[paulmueller]

• What happens in case the program gets closed (crash, user, blackout, task stopped via task manager) during a file transfer?
• What if the destination folder gets disconnected during copying?
• What if the software is closed during copying or maybe during compression, then the destination folder gets deleted and then the software is started again?

[B-Hartmann]

Regarding RTDC: Empty RTDC files (recorded with Shape-In, but no events) cause an error. Either ignore these files or copy them as is; inform the user which of these options was used.
Right now, there is also no message that tells the user that all other files were copied correctly, which leads to confusion and uncertainty what the software now did or did not do.

[paulmueller]

AFAIK this does not apply to the "CatchAll" recipe. So using that should always be safe.