Prepare CbmRoot for Apple arm64

Changes to allow to compile CbmRoot also on arm64. Most of the code compiles without problems but the code tweaked for Intel SSE instructions must be adapted.

After the change in L1 to use VC most of the problems are gone. The only leftover is to compile L1 in nay case even if SSE isn't supported. In that case VC use the scalar option.

reco/L1/CMakeLists.txt

@@ -8,13 +8,6 @@
 # L1 defines
 ADD_DEFINITIONS(-DDO_TPCCATRACKER_EFF_PERFORMANCE -DNonhomogeneousField -DCBM -DUSE_TIMERS)
 
-IF(SSE_FOUND)
-  ADD_DEFINITIONS(-DHAVE_SSE)
-  Message(STATUS "L1 will be compiled with SSE support")
-ELSE(SSE_FOUND)
-  Message(FATAL_ERROR "L1 can not be compiled without SSE support")
-ENDIF(SSE_FOUND)
-
 Set(INCLUDE_DIRECTORIES
 
   ${CBMROOT_SOURCE_DIR}/algo/ca