Initial import of libsafec, providing bounds checking memory and string
functions per ISO/IEC TR24731, into the packages collection.

	The Safe C Library provides bound checking memory and string functions
	per ISO/IEC TR24731.  These functions are alternative functions to the
	existing standard C library that promote safer, more secure
	programming.

	The ISO/IEC Programming languages -- C spec, C11, now includes the
	bounded APIs in Appendix K, "Bounds-checking interfaces".