Beta 10: (clipboard stuff)

- clipboard: multiple CHRS chunks inside FTXT supported
- clipboard: IFF ILBM Amiga to PC support implemented. EHB supported, HAM6/8 automatically converted to 24-bit, 24-bit IFF supported
- clipboard: PC to Amiga IFF conversion. Counts the number of colors, if 256 or less, creates normal paletted IFF image, if more, creates 24 bit IFF.
- clipboard: Windows clipboard is only updated when there is new data in Amiga clipboard and WinUAE loses focus. Same with Amiga clipboard, do not copy contents of Windows clipboard until WinUAE gains focus.
- switching from "artifact fixed" interlace mode to non-laced now force updates the screen completely, fixes possible glitches