PR modula2/109879 WholeIO.ReadCard and ReadInt should consume leading space

The Read{TYPE} procedures in LongIO, LongWholeIO, RealIO, ShortWholeIO and
WholeIO all require skip space functionality.  A new module TextUtil
is supplied with this functionality and the previous modules have been
changed to call SkipSpaces.

gcc/m2/ChangeLog:

	PR modula2/109879
	* gm2-libs-iso/LongIO.mod (ReadReal): Call SkipSpaces.
	* gm2-libs-iso/LongWholeIO.mod (ReadInt): Call SkipSpaces.
	(ReadCard): Call SkipSpaces.
	* gm2-libs-iso/RealIO.mod (ReadReal): Call SkipSpaces.
	* gm2-libs-iso/ShortWholeIO.mod: (ReadInt): Call SkipSpaces.
	(ReadCard): Call SkipSpaces.
	* gm2-libs-iso/TextIO.mod: Import SkipSpaces.
	* gm2-libs-iso/WholeIO.mod (ReadInt): Call SkipSpaces.
	(ReadCard): Call SkipSpaces.
	* gm2-libs-iso/TextUtil.def: New file.
	* gm2-libs-iso/TextUtil.mod: New file.

libgm2/ChangeLog:

	PR modula2/109879
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* libm2cor/Makefile.in: Regenerate.
	* libm2iso/Makefile.am (M2DEFS): Add TextUtil.def.
	(M2MODS): Add TextUtil.mod.
	* libm2iso/Makefile.in: Regenerate.
	* libm2log/Makefile.in: Regenerate.
	* libm2min/Makefile.in: Regenerate.
	* libm2pim/Makefile.in: Regenerate.

gcc/testsuite/ChangeLog:

	PR modula2/109879
	* gm2/isolib/run/pass/testreadint.mod: New test.

Signed-off-by: Gaius Mulley <gaiusmod2@gmail.com>