Get Code Signing done for Windows

[thorrak]

Although the whole point of BrewFlasher is to reduce the amount of trouble people have when flashing firmware to an ESP, the lack of code signing works against this goal. Project for soon-ish (after I figure out the MacOS issue): Get the windows binaries code signed.

https://docs.microsoft.com/en-us/windows/win32/win_cert/windows-certification-portal

[thorrak]

Apparently, code signing requires an EV code signing certificate which costs upwards of ~$250 (possibly $180, but still) at the low end. That said, my apologies to Windows users - you're just going to have to deal with the warning message.

In case I ever decide to revisit this, pyinstaller code signing info is here: https://github.com/pyinstaller/pyinstaller/wiki/Recipe-Win-Code-Signing
Signtool documentation is here: https://docs.microsoft.com/en-us/windows/win32/seccrypto/signtool?redirectedfrom=MSDN
MSFT Desktop Application Program info is here: https://docs.microsoft.com/en-us/windows/win32/appxpkg/windows-desktop-application-program?redirectedfrom=MSDN#metadata
...and code signing cert info is here: https://docs.microsoft.com/en-us/windows-hardware/drivers/dashboard/get-a-code-signing-certificate