This option generates a Python binding that executes the proxied C++ code faster.

Adding the "olddeps" option generates a Python proxy with the correct method signatures so that calling code can treat it like Python, but the actual call is done with the proxied property.

Note that another option, "builtin" was also tried, but this broke existing implementations so it was not suitable.

For a comparison of the different methods see: https://www.swig.org/Doc4.2/Python.html#Python_optimization

Unlike the verovio.i file, where the type hints were in the proxy, but no other "direct" methods were typed, the .pyi file contains type hints for all the methods in the Python Verovio binding.

The py.typed file signals that this package is typed. See: https://peps.python.org/pep-0561/

- Added a few methods to ignore that were anyway broken in the Python package and that used ostream arguments (difficult to know what type of data Python expects here)
- The first argument for class methods is, by convention, 'self'. Modified this since the .pyi file used self for the "automatically" proxied code, and "toolkit" for the ones from the .i file.
- Made "xml_id" consistent with "xmlId" arguments in the automatically-proxied code.
- Added a proxy for "ValidatePAEFile" that turns the return string into a Python dictionary (same as "ValidatePAE")

As far as we know, this is no longer necessary?