(feature) Add Collect Artifact Setup Step

Prior to this commit, we needed a way to keep track of some important
operating system data while running our gatling puppet load tests. This
commit adds a ruby script to gather that data from facter run on the
master, which is then parsed out for specific data points we are
interested in, then both the full facter output and the important data
is written to a text file and csv file respectively.
(maint) Simplify File Write Action

Prior to this commit, writing the facter data to a file was a bit more
complicated than it needed to be. This commit simplifies that action.
Revert "(maint) Simplify File Write Action"

This reverts commit 0f033de3287a7ddf77c00792fd6fba62f35f6567.
Merge pull request #50 from briancain/maint/master/gather_important_data

(feature) Add Collect Artifact Setup Step