add dcos-runner config file
add dcos-runner config file

a runner config file contains a list of checks to be executed on pre/post
start as well as cluster checks.

surdy/dcos,kensipe/dcos,asridharan/dcos,mellenburg/dcos,mesosphere-mergebot/dcos,lingmann/dcos,mellenburg/dcos,branden/dcos,branden/dcos,surdy/dcos,mellenburg/dcos,mesosphere-mergebot/dcos,surdy/dcos,kensipe/dcos,GoelDeepak/dcos,mesosphere-mergebot/mergebot-test-dcos,GoelDeepak/dcos,lingmann/dcos,lingmann/dcos,amitaekbote/dcos,GoelDeepak/dcos,dcos/dcos,dcos/dcos,asridharan/dcos,lingmann/dcos,branden/dcos,GoelDeepak/dcos,mesosphere-mergebot/mergebot-test-dcos,kensipe/dcos,dcos/dcos,mesosphere-mergebot/dcos,asridharan/dcos,BenWhitehead/dcos,BenWhitehead/dcos,kensipe/dcos,BenWhitehead/dcos,mellenburg/dcos,dcos/dcos,amitaekbote/dcos,amitaekbote/dcos,amitaekbote/dcos,branden/dcos,mesosphere-mergebot/dcos,asridharan/dcos,surdy/dcos,dcos/dcos,mesosphere-mergebot/mergebot-test-dcos,mesosphere-mergebot/mergebot-test-dcos,BenWhitehead/dcos