Cleaned up Python bindings to restore functionality:
* StaticPersistence is iterable, its nodes are usable (sign, pair, cycle)
* StaticPersistence knows how to map its nodes into Filtration indices
* moved PythonCmp into utils.h
* minor cosmetic changes
#include <utilities/counter.h>
static Counter* cTestElaborate = GetCounter("test/elaborate");
static Counter* cTestBasic = GetCounter("test/basic");
static Counter* cTestBasicSub = GetCounter("test/basic/sub");
int main()
{
SetFrequency(cTestBasic, 2);
Count(cTestBasic);
Count(cTestBasicSub);
Count(cTestBasicSub);
Count(cTestBasicSub);
Count(cTestElaborate);
Count(cTestBasic);
Count(cTestElaborate);
Count(cTestBasic);
Count(cTestBasic);
CountNum(cTestBasic, 25);
CountNum(cTestBasic, 132);
CountNum(cTestBasic, 25);
CountNum(cTestBasic, 121);
CountNum(cTestBasic, 132);
CountNum(cTestBasic, 25);
SetTrigger(cTestBasic, &rootCounter);
Count(cTestBasic);
Count(cTestBasic);
SetFrequency(cTestElaborate, 3);
Count(cTestElaborate);
}