This function returns the number of records in a given level.
Result = EOS_PT_NRECS( pointID, level)
Returns number of records in a given level if successful and FAIL (-1) otherwise.
Point id (long) returned by EOS_PT_CREATE or EOS_PT_ATTACH.
Level number (0-based long).
In this example, we retrieve the number of records in the first level of the 2nd point defined previously:
nrecs = EOS_PT_NRECS(pointID2, 0)