Changes

* Direct cartridge loading from host computer using USB

* Cartridge file can be in standard .cpr format or raw binary .bin

<big>'''<span style="color:#FF0000"> Using C4CPC on a GX4000 with the original Amstrad power supply may cause damage to the GX4000 please read [http://www.cpcwiki.eu/forum/amstrad-cpc-hardware/%28please-read%29-gx4000-with-original-power-brick-and-c4cpc/ this forum thread] </span>'''</big>