Add mTRD v24b geometry + macro, aligned to measurements in the cave, refs #3238

=> Also add TRD v24a creation macro, provided by Axel Puntke
=> Root file not added/removed as known not matching reality

trd/trd_v24b_mcbm.geo.info

+#
+##   trd_v24b_mcbm information file
+#
+
+# created 20240326
+
+# envelope
+0.000000 cm   start of TRD (z)
+120.600000 cm   end   of TRD (z)
+
+# thickness
+40.200000 cm   per single layer (z)
+
+# extra gaps
+ 0.000000 0.000000 0.000000    extra gaps in z (cm)
+
+# generated TRD layers
+  1  2  3    planeID
+
+# dimensions in x
+-206.500000 cm to 206.500000 cm x-dimension of layer  1
+-346.500000 cm to 346.500000 cm x-dimension of layer  2
+-346.500000 cm to 346.500000 cm x-dimension of layer  3
+
+# dimensions in y
+-152.000000 cm to 152.000000 cm y-dimension of layer  1
+-247.500000 cm to 247.500000 cm y-dimension of layer  2
+-247.500000 cm to 247.500000 cm y-dimension of layer  3
+
+# z-positions of layer front
+0.000000 cm   z-position of layer  1
+40.200000 cm   z-position of layer  2
+80.400000 cm   z-position of layer  3
+
+# flags
+support structure is    : NOT included
+radiator is             : NOT included
+lattice grid is         : included
+kapton window is        : included
+gas frame is            : included
+padplane is             : included
+backpanel is            : included
+Aluminium ledge is      : included
+Gibbet support is       : included
+Power bus bars are      : NOT included
+asics are               : included
+front-end boards are    : included
+1D GBTX readout boards are : NOT included
+2D GBTX readout boards are : included
+
+# modules
+     mod1     mod2     mod3     mod4     mod5     mod6     mod7     mod8     mod9     mod10    total
+---------------------------------------------------------------------------------
+        0        0        0        0        0        0        0        0        1        0            layer  1
+        0        0        0        0        1        0        0        0        0        0            layer  2
+        0        0        0        0        1        0        0        0        0        0            layer  3
+
+---------------------------------------------------------------------------------
+        0        0        0        0        2        0        0        0        1        0        3   number of modules
+# febs
+        9s       5s       6s      18       12        8        4        3       18       18            FEBs per module
+                                                                                                  0   ultimate  FEBs
+        0s       0s       0s                                                                      0   super     FEBs
+                                           24        0        0        0                         24   regular   FEBs
+        0        0        0        0       24        0        0        0       18        0       42   number of FEBs
+# asics
+       10       10       10       10        8        8        8        8       10       10            ASICs per FEB
+       90       50       60      180       96       64       32       24      180      180            ASICs per module
+        0        0        0        0      192        0        0        0      180        0      372   number of ASICs
+# gbtx
+       15       10        5       18        0       10        5        3       18       18            GBTXs per module
+        0        0        0        0        0        0        0        0       18        0       18   number of GBTXs
+      555       55        5   333333        0       55        5        3   333333   333333            GBTX ROB types on module
+        0        0        0        0        0        0        0        0        0        0        0   number of GBTX ROB7
+        0        0        0        0        0        0        0        0        0        0        0   number of GBTX ROB5
+        0        0        0        0        0        0        0        0        6        0        6   number of GBTX ROB3
+# e-links
+      180      100      120      360      192      128       64       48      360      360      744   e-links used
+      210      140       70      252        0      140       70       42      252      252      252   e-links available
+        -        -        -        -        -        -        -        -   142.9%        -   295.2%   e-link efficiency
+
+# channels
+     1440      800      960     2880     3072     2048     1024      768     2880     2880            channels per module
+      160      160      160      160      256      256      256      256      160      160            channels per feb
+        0        0        0        0     6144        0        0        0     2880        0     9024   channels used
+        0s       0s       0s       0F    6144        0        0        0     2880F       0F   11904   channels available
+    24.2%u    0.0%s   51.6%r                                                        channel ratio
+
+    75.8%   channel efficiency
+
+   2.94 m2      total surface    
+   2.76 m2      total active area
+   0.03 m3      total gas volume 
+   3.06 cm2/ch  average channel size
+3263.89 ch/m2   channels per m2 active area
+
+# gas volume position
+    1.6000 cm   position of gas volume - layer  1
+   41.8000 cm   position of gas volume - layer  2
+   82.0000 cm   position of gas volume - layer  3
+
+# angles of acceptance
+v: 89.16 deg, h: 89.38 deg - vertical/horizontal - layer  1
+v: 80.27 deg, h: 83.02 deg - vertical/horizontal - layer  2
+v: 71.54 deg, h: 76.59 deg - vertical/horizontal - layer  3
+
+# inner aperture
+v: 85.54 deg, h: 85.54 deg - vertical/horizontal - layer  1
+v: 33.89 deg, h: 33.89 deg - vertical/horizontal - layer  2
+v: 19.03 deg, h: 19.03 deg - vertical/horizontal - layer  3
+