Save default temp file for later recovery

[peetm]

PyScripter creates a temporary file for an unsaved script. PyScripter also re-opens files that were saved and open in tabs upon a restart, e.g., in case of an application crash. However, the temporary used for an unsaved script is not reopened on a PyScripter restart.

It would be useful to have an option to have it do this - basically, treat the unsaved temporary as though it was a saved file.