The signing step does not get passed the username and password to the server, so it will just read from the build cache. Then to make sure the tasks are all updated correctly, use if developerid exists as a property to all sign tasks, so it will see the new variable value, and relink. Additionally only update the archives during signing, which will speed up signing.
This is enabled by the C++20 __VA_OPT__ feature.
Uses of "{}" format string were updated.
Some warning suppressions were required for older clang versions.
Also improve codegen of wpi::Logger::Log(), frc::ReportError(), and frc::MakeError();
these generate better and less redundant code if they use fmt::string_view for the
format string instead of templating on it.
Most of these were unused, the IMU ones were just debug messages.
The only one that wasn't removed is in portable-file-dialogs.cpp since
the replacement looks less trivial.
