Lint/format C++ code

[LeonarddeR]

Is your feature request related to a problem? Please describe.

Multiple code styles are mixed in NVDA's C++ code

Describe the solution you'd like

Apply auto linting/formatting to the code base, similar to what we do with Ruff.

Describe alternatives you've considered

Leave as is.

Additional context

I have experimented with clangformat in jcsteh/osara#940 . The idea there is to find a format that minimized changes to OSARA's code base. However, there were several side effects to clangformat that resulted in pretty ugly results with spacing. I'm therefore not sure clangformat is the way to go.

CC @seanbudd

[seanbudd]

Closing in favour of #12407