FP-IDE for AmigaOS4

Reached the state of AmigaOS4 compiling and running the FP-IDE 😉 This was the aim of this implementation run, so its proven the library units are there and working the rest will be just work. For LCL at least MUI have to be implemented, but when I see how slow the FP-IDE is already in WinUAE I really do not want to try LCL.

I will clean up everything and commit to freepascal repository and make a release archive.