Changing the dependency of the aliceHLTwrapper module

aliceHLTwrapper does not depend on AliRoot, so this dependency is removed.
AliRoot libraries are added at runtime as plugins.

Author: matthiasrichter

devices/CMakeLists.txt

@@ -2,5 +2,5 @@ add_subdirectory (flp2epn)
 add_subdirectory (flp2epn-distributed)
 if(ALIROOT)
   add_subdirectory (hough)
-  add_subdirectory (aliceHLTwrapper)
 endif(ALIROOT)
+add_subdirectory (aliceHLTwrapper)