unique name when created from dict

[andped10]

We need to keep the unique_name in order to be able to reproduce the object.

We are still able to get a copy by using a dict where we skip the unique_name

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[henrikjacobsenfys]

Looks good to me

[andped10]

@damskii9992 Please confirm that these merged changes are OK

[damskii9992]

@damskii9992 Please confirm that these merged changes are OK

Changes are OK for now but might lead to issues in the future.
Explaining here for documentation: If a user has already created an object with a unique_name: "BaseObj_0" and they then try to load an object which was saved with the same unique_name, this will fail.
To circumvent this, we might want to add an option to overwrite the loaded objects unique_name and add a proper error message to the user telling them to do this in case of name clashes upon loading.