Adopt changes from aliaspider/ppsspp@c84dc90#diff-926d68b2fc88fcefd3d…

…26fe929f99bac

- added FSA raw open/read/write/close functions to ioctl commands

- removed usage of gctypes.h and use stdint.h instead

first commit of the library

- added multiple functions to communication to /dev/iosuhax over ioctl command
- added multi functional devoptab for mounting and/or mapping devices to virtual device names