ibacm: Add performance counters

ibacm: Add performance counters

Add performance counters to track service usage.  Counters are exposed
via a new perf query request.  Update ib_acme to retrieve counters from
a specified endpoint.

Counters that are currently defined are:

- Address and route resolution errors
- Resolution requests
- Requests not satisfied as a result of no data available
- Requests requiring an address lookup
- Requests that found address information in the cache
- Requests requiring a route lookup (i.e. path record query)
- Requests that found route information in the cache

Signed-off-by: Sean Hefty <sean.hefty@intel.com>