ARM64EC build

[jcsteh]

There is now a build of REAPER which can run with native performance on ARM laptops. REAPER is built using ARM64EC, which means that even though REAPER runs with native ARM64 performance, it can still load and use x64 components under emulation. This means that OSARA's x64 build works fine as is with REAPER's ARM64EC build. OSARA doesn't do a lot of computationally intensive work, so emulation shouldn't noticeably impact performance. Even so, for maximum possible performance, we should look at including an ARM64EC build of OSARA, though this is pretty low priority.

[LeonarddeR]

One issue I see with this is that we now have reaper_osara32.dll and reaper_osara64.dll. How should we name the arm64EC dll and how can we tell REAPER to prefer it over the AMD64 build?

[jcsteh]

I figured we'd just call it reaper_osara_arm64ec.dll, which breaks the convention slightly with the addtional underscore, but whatever. :)

I didn't think of the other problem, though. I'm guessing that even if REAPER loads alphabetically and we name the dlls so that arm64ec loads first, REAPER will just try to load both, which will likely result in all sorts of pain. I wonder if we can have the AMD64 dll detect an ARM64 system somehow and return failure on load (e.g. in the plugin entry point) so REAPER refuses to load it?