fixup-PR#506 Speed improvements in facter resolution
fixup-PR#506 Speed improvements in facter resolution

This is to improve speed on Facter resolution of service_provider fact
that was just introduced in PR# 506.  The improvements go from 280ms
resolution time approx. down to 2ms resolution time approx. by adding
requires statements.

puppetlabs/puppetlabs-stdlib,jbondpdx/puppetlabs-stdlib,DavidS/puppetlabs-stdlib,HelenCampbell/puppetlabs-stdlib,yadavnikhil/puppetlabs-stdlib,fuel-infra/puppetlabs-stdlib