security/snort: Fixes for aarch64 and armv6/7

This patch does a few things:

1. Update depends to a newer version of net/daq, in the ports tree for a
   long time already, but explicitly depend on it.
2. Split out corefiles separate from debug options
3. Switch from luajit to luajit-openresty so that snort can build on
   aarch64
4. Fix crashing on armv7 due to misaligned memory access (from mjg@)

While here, in pkg-plist change deprecated @unexec to @postunexec

PR:		257747
Reported by:	brd