Added simple BATS integration test + rrdtool

Added rrdtool to default recipe, as well as basic BATS integration test to check package
installations and the running status of the smokeping process.

Signed-off-by: "Jake Champlin" <jake.champlin.27@gmail.com>
Revert "Added simple BATS integration test + rrdtool"

This reverts commit 8097153547912ce6c57974b3b0089cfdd937bc60.
Added simple BATS integration test + rrdtool

Added rrdtool to default recipe, as well as basic BATS integration test to check package installations and the running status of the smokeping process.

Signed-off-by: "Jake Champlin" <jake.champlin.27@gmail.com>
Merge pull request #3 from jchampy/integration_test

Integration test