Enable and package grep, find, xargs, diff, cmp
Upgrades Busybox to 1.29.3 and enables a few more tools.
[packaging] Package diffutils symlinks. JB#36423 [packaging] Package findutils symlinks. JB#36243 [packaging] Package grep symlinks. JB#40843 [config] Enable cmp and diff. JB#36423 [config] Enable find and xargs. JB#36243 [config] Enable grep, fgrep, egrep. JB#40843