Added executable to compute Wasserstein distance.
Powering to 1/q is done in output. Maybe, should be changed in the
function itself?
#include <utilities/log.h>
#ifdef LOGGING
static rlog::RLogChannel* rlFiltration = DEF_CHANNEL("topology/filtration/info", rlog::Log_Debug);
static rlog::RLogChannel* rlFiltrationDebug = DEF_CHANNEL("topology/filtration/debug", rlog::Log_Debug);
#endif // LOGGING