Create summary txt also for MuonPerformanceAlg and MuonSegmentPerformanceAlg

Hi,

up to now if the MuonPerformanceAlg and the MuonSegmentPerformanceAlg were added, they were printing their summary inside the athena reconstruction log, which increased the log and made it difficult to find the information later. Now, as it is done already in the MuonTrackPerformanceAlg, the summary is saved into a text file. Also adapting the ART test accordingly.

Best, Nico