Simulator Code Flow

sim_open
- - checks entity root - initializes
  - - rptable - for storing resources and rdrs - asyncq - for storing events for sim_event_get
  - populates rptable with resources from sim_resources.c/h
  - - all resources must include a "new" flag in their (void*)data struct. New will be set to 1 during this initial popluation.
  - returns state pointer
sim_discover
- - for all "new" resources, create add events, add them to event q
sim_get_event
- - send up events for each item in event q