Fixes the controls for _display_aequilibrae_formatsdialog.py for a situation in which the user closes the GetOutputFileName window. Before it raised an error and the _ui_vectorloader was not responsive. Now it still raises an error, but the UI is responsive, so the user can click once again to load the data or close the window. There is also a modification to allow the users to view the content of OMX, AEM or AED files using QAequilibraE without opening a project.
Reflects these modifications in test files and other dialogs
This PR: