Add comphelperlib for isdigitAscii etc

Despite these being marked as inline, needed when linking at least in
a WNTMSC build with --enable-dbgutil, possibly always with WNTMSC.

ucb/source/core/makefile.mk

@@ -55,6 +55,7 @@ SHL1DEF=$(MISC)$/$(SHL1TARGET).def
 SHL1STDLIBS=\
     $(CPPUHELPERLIB) \
     $(CPPULIB) \
+    $(COMPHELPERLIB) \
     $(SALLIB) \
     $(UCBHELPERLIB)
 SHL1LIBS=\