New port: sysutils/lsop

lsop is a FreeBSD utility to list all processes running with outdated
binaries or shared libraries (that is, binaries or shared libraries
that have been upgraded or simply deleted).

lsop does not currently work when started in a FreeBSD jail!

WWW: https://github.com/606u/lsop

PR: 213340
Submitted by: 606u@dir.bg
Approved by: lme (mentor)
Differential Revision: https://reviews.freebsd.org/D10083