[CDG5] BuildCubeE

[Elliot Nunn]

Hi all,

I have updated BuildCubeE to support tools other than MPW. The -c option
runs an MPW command as before, but the Finder and ResEdit are also
available. Maybe CodeWarrior ~v4 could be added in the future? Or THINK
C?

Additionally, I have made the binary patches much neater. For example,
by patching the Process Manager directly, I can avoid having to make MPW
Shell a 'FNDR' in the System Folder.

Hit me with suggestions for new names! I intend for this to be a
rock-solid cross-platform heir to EMPW (not that EMPW is going away).

Elliot