modula2: Export all string to integral and fp number conversion functions

modula2: Export all string to integral and fp number conversion functions

Export all string to integral and floating point number conversion functions
(atof, atoi, atol, atoll, strtod, strtof, strtold, strtol, strtoll, strtoul
and strtoull).

gcc/m2/ChangeLog:

	* gm2-libs/libc.def (atof): Export unqualified.
	(atoi): Ditto.
	(atol): Ditto.
	(atoll): Ditto.
	(strtod): Ditto.
	(strtof): Ditto.
	(strtold): Ditto.
	(strtol): Ditto.
	(strtoll): Ditto.
	(strtoul): Ditto.
	(strtoull): Ditto.

Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net>