resource in @export statements is not used to determine the output path

[mmarx]

Currently, for any @export statement, the output path is based solely on the base output path and the predicate name. The resource attribute should be used instead of the predicate name.

[mkroetzsch]

Some details of how this should behave may need to be specified, since we have global settings in OutputManager and local setting in individual exports. Suggestion:

• Exports already require a "resource" (file name) to be given. This would also define the compression method (by the extension), no matter what is set globally.
• If exports specify relative paths, then they should be relative to the base path of the OutputManager.

[mmarx]

Pretty sure that this got resolved with the new data model in Nemo 0.5.0.