Add possibility to create ini file

if the gamename passed in command line are "createconfig"
Correct makefile override rule

 for makedep and makemak
Remove the PTR64=1 

This badly break 32 compilation, so PTR64=1 as to be manually passed to the make command line.
at least on win64.
eg. make -f Makefile.libretro "PTR64=1" -j4
Merge remote-tracking branch 'upstream/master'

Conflicts:
	0152/src/osd/retro/retromain.c