nvda

bb0520cf - Enable building with different version of Scons than repo submodule (PR #10883)

Enable building with different version of Scons than repo submodule (PR #10883) Modify SConscript to make it possible to build with different version of SCons than the one bundled in the repository Closes https://github.com/nvaccess/nvda/issues/10876 Use Scons installed with Python (rather than the repo submodule) by moving to the top dir of the repo and executing `c:\Python37\Scripts\scons.bat`