Resolve "Implement ci_GEM"

Closes #20 (closed)

compact/cb_Solenoid.xml

+<lccdd>
+
+  <comment>Central Barrel Solenoid</comment>        
+
+  <define>
+  </define>
+
+  <limits>
+  </limits>
+
+  <regions>
+  </regions>
+
+  <display>
+  </display>
+
+  <!-- Define detector -->
+  <detectors>
+    <comment>
+      Central Barrel Solenoid Magnet
+    </comment>
+    <detector id="Solenoid_ID" name="cb_Solenoid" type="cb_Solenoid" insideTrackingVolume="false" vis="cb_SolenoidVis">
+	    <material name="Vacuum"/>  <!-- G4_Galactic -->	    
+      <dimensions rmin="cb_Solenoid_rmin" rmax="cb_Solenoid_rmax" z="cb_Solenoid_z" delta="cb_Solenoid_shift"/>
+    </detector>
+  </detectors>
+
+  <plugins>
+  </plugins>
+
+  <!-- TODO: Define field using field map-->
+  <fields>
+  </fields>
+</lccdd>