Plugin loading improvement for IDE

Hi,

not sure if that also affects others, but for me the Xojo IDE always tries to load 32-bit dylib for my plugins before trying 64-bit one.

I made a feedback case for this: <https://xojo.com/issue/50882>

Maybe Xojo could try to load plugins in this order:

  1. Mac x86-64
  2. Mac Cocoa
  3. Mac Carbon Mach-O Universal