Begin porting SQLite
Import https://raw.githubusercontent.com/avsm/openbsd-xen-sys/master/lib/libsa/memcpy.c
Import https://raw.githubusercontent.com/avsm/openbsd-xen-sys/master/lib/libsa/memset.c
Fix up memset
Import https://raw.githubusercontent.com/avsm/openbsd-xen-sys/master/lib/libsa/strlen.c
Update header, don't fake VxWorks