CBD-461: first draft stats collector/graphing requirements list
CBD-461: first draft stats collector/graphing requirements list

Change-Id: I62fa741e9be608c340f813388e7fcee4ceb38425

couchbaselabs/priority15,couchbaselabs/litmus,couchbaselabs/litmus,couchbaselabs/litmus,couchbase/cbmonitor,couchbase/cbagent,ronniedada/litmus,vmx/cbagent,couchbaselabs/priority15,couchbase/cbmonitor,pavel-paulau/cbagent,mikewied/cbagent,ronniedada/litmus,couchbaselabs/priority15