* regtool.cc (key_type): Drop.

	* regtool.cc (key_type): Drop.
	(REG_AUTO): Define.
	(value_type): Replace key_type.  Use REG_xxx values directly.
	Accomodate change throughout.
	(longopts): Add --dword, --dword-le, --none, --qword and --hex options.
	(opts): Add -d, -D, -n, -Q and -x options.
	(types): Array to convert REG_xxx into strings.
	(hex): New variable to keep value of --hex option.
	(usage): Accomodate new options.  Print only the necessary by default.
	Only be verbose in case of -h/--help option.
	(cmd_list): Use key separator from -K option when printing.
	Print value type when verbose option is given.  Handle so far not
	handled REG_xxx types.
	(cmd_set): Avoid SEGV due to missing argument.  Handle so far not
	handled REG_xxx types.
	(cmd_get): Handle --binary option type agnostic.  Handle so far not
	handled REG_xxx types.
	(main): Handle new options.