Resolve "Implement ce_MRICH"

Closes #12 (closed)

compact/ce_mrich.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<lccdd>
+  <define>
+  </define>
+
+  <detectors>
+    <detector id="ce_MRICH_ID" name="ce_MRICH" type="refdet_ce_MRICH" readout="MRICHHits" vis="BlueVis" material="Air">
+      <dimensions rmin="ce_MRICHRMin" rmax="ce_MRICHRMax" length="ce_MRICHLength" z="ce_MRICHZMin"/>
+      <modules material="Quartz" thickness="10*cm" width="10*cm" gap="1*cm" />
+    </detector>
+  </detectors>
+
+  <readouts>
+    <readout name="MRICHHits">
+      <segmentation type="CartesianGridXY" grid_size_x="3*mm" grid_size_y="3*mm" />
+      <id>system:8,layer:4,piece:4,module:14,x:32:-16,y:-16</id>
+    </readout>
+  </readouts>
+
+</lccdd>