fix: Added the exception check in original code

[oni-shiro]

Due to missing resx files, can not create the localised string as of now.

[vbreuss]

I don't understand why we would need this, as this method should only be a wrapper around the native Directory.Move. The idea of this library is to not change the behaviour of the underlying file system!

[oni-shiro]

I added this check to handle this issue As it states, the wrapper class and the mock class differ in behaviour.
Another fix would be removing this checks from mock class instead of adding them in wrapper class. Let me know your thoughts.

[vbreuss]

@oni-shiro:
The goal of this library is to provide a wrapper and testing helper that behaves exactly the same as the native file system. The wrapper class should only wrap the native calls so that they can be tested.
When an issue describes a different behaviour between the native file system and the testing helpers, it is always the testing helpers that should be adapted.

I assigned #1138 to you.