Add Test Benchmarks

[xeoncross]

To get an idea of the overhead added to redis and throughput of a beaver instance, some benchmarks could be added to the core application integrations to provide an idea of how many hosts an instance could serve with reference hardware.

[Clivern]

i had this idea before to create a load testing tool to get these numbers https://github.com/Clivern/Beaver/issues/56. it is something i really want to do once v2 released to see how much beaver cluster can withstand. i would prefer having numbers for the whole thing than small functionalities