Add support for macros

[Gniarf]

Hello,

one feature I would need is to preserve any macro inside the ODS file. As far as I have seen, they seem to be stored in folders named with the langage used for the macro (Basic in my case).

Would it be possible to store them somewhere when reading an ODS file to be able to restore them when saving the spreadsheet as a new file ?

For now I'll be handling this be injecting them manually in the produced ODS, but it would be much usefull to handle this directly in SODS.

Thank you