Update TRD v21a by Alexandru and complete mCBM 2021_07 setup, refs #2215

setup/setup_mcbm_beam_2021_07.C

@@ -63,8 +63,8 @@ void setup_mcbm_beam_2021_07()
 //  TString muchGeoTag      = "v20a_mcbm";    // 2 layers
 //  TString muchGeoTag      = "v19a_mcbm";    // need 3 layers and RPC here
 
-//  TString trdGeoTag       = "v21a_mcbm";    // 2021 // TRD-2D + 2x TRD modules
-  TString trdGeoTag       = "v20b_mcbm";    // 2021 // 2x TRD modules
+  TString trdGeoTag       = "v21a_mcbm";    // 2021 // TRD-2D + 2x TRD modules
+//  TString trdGeoTag       = "v20b_mcbm";    // 2021 // 2x TRD modules
 
   TString tofGeoTag       = "v21c_mcbm";    // TOF quad + double stacks
 //  TString tofGeoTag       = "v20d_mcbm";    // 2nd layer of 3x M6 modules added

trd/trd_v21a_mcbm.geo.info

@@ -2,7 +2,7 @@
 ##   trd_v21a_mcbm information file
 #
 
-# created 20210817
+# created 20210818
 
 # envelope
 0.000000 cm   start of TRD (z)