Castle Game Engine: TCastleProcess and ExecuteCommand available with both FPC and Delphi, no more cryptic “Failed to execute  : 4551” when Windows “Smart App Control” blocks us

We refactored our process running code (when one application wants to run another). This is used throughout our tools (build tool, editor) but we also have uses for it in the engine itself. Refactoring this into a nice unit gives us more possibilities, for now and for the future:) The code is now in a …