MuonSimEventTPCnv: Add missing test reference files.

Add missing test reference files.

MuonSpectrometer/MuonCnv/MuonSimEventTPCnv/share/sTGCSimHitCollectionCnv_p1_test.ref

+ApplicationMgr    SUCCESS 
+====================================================================================================================================
+                                                   Welcome to ApplicationMgr (GaudiCoreSvc v27r1p99)
+                                          running on karma on Sat Oct  6 12:13:52 2018
+====================================================================================================================================
+ApplicationMgr       INFO Application Manager Configured successfully
+EventLoopMgr      WARNING Unable to locate service "EventSelector" 
+EventLoopMgr      WARNING No events will be processed from external input.
+HistogramPersis...WARNING Histograms saving not required.
+ApplicationMgr       INFO Application Manager Initialized successfully
+ApplicationMgr Ready
+ClassIDSvc           INFO  getRegistryEntries: read 2754 CLIDRegistry entries for module ALL
+test1
+HepMcParticleLink    INFO find_hostkey: Using TruthEvent as McEventCollection key for this job 

MuonSpectrometer/MuonCnv/MuonSimEventTPCnv/share/sTGCSimHitCollectionCnv_p2_test.ref

+ApplicationMgr    SUCCESS 
+====================================================================================================================================
+                                                   Welcome to ApplicationMgr (GaudiCoreSvc v27r1p99)
+                                          running on karma on Sat Oct  6 12:12:27 2018
+====================================================================================================================================
+ApplicationMgr       INFO Application Manager Configured successfully
+EventLoopMgr      WARNING Unable to locate service "EventSelector" 
+EventLoopMgr      WARNING No events will be processed from external input.
+HistogramPersis...WARNING Histograms saving not required.
+ApplicationMgr       INFO Application Manager Initialized successfully
+ApplicationMgr Ready
+ClassIDSvc           INFO  getRegistryEntries: read 2754 CLIDRegistry entries for module ALL
+test1
+HepMcParticleLink    INFO find_hostkey: Using TruthEvent as McEventCollection key for this job