Add _p4 version of CscRawDataCnv

Hi,

this MR is a manual sweep of the 3 MRs !28146 (merged), !28231 (merged) and !28290 (merged) into 21.0-mc16a.

It adds a CscRawDataCnv_p4 converter since we moved from using CSC identifier hashes which reflect the geometrical position of the CSCs to the actual index of the identifier in the vector of identifiers (positional hash) in !24467 (merged) in master.

For the 21.0 releases, we want to keep the old geometrical channel identifier hashes as baseline in the transient format. Thus only the _p4 version of the converters translates positional identifier hashes from the persistent p4 files back to geometrical channel identifier hashes needed by the 21.0 transient model. There is also a transToPers() implementation for p4 which however is not the default for 21.0.

The content of the CscRawData still stays as in version p3, just the meaning of m_hashId changes from geometrical to positional hash.

Adding @mnowak, @jchapman

Database/AthenaPOOL/AthenaPoolUtilities/cmake/AthenaPoolUtilitiesTestConfig.cmake

-# Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+# Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
 
 #
 # $Id: AthenaPoolUtilitiesTestConfig.cmake 780067 2016-10-24 14:39:09Z krasznaa $
@@ -14,6 +14,8 @@
 
 function( run_tpcnv_test testName refName )
 
+   cmake_parse_arguments( ARG "" "REFERENCE_TAG" "" ${ARGN} )
+
    # The package name is needed for the configuration of the test script:
    atlas_get_package_name( pkgName )
 
@@ -33,11 +35,16 @@ function( run_tpcnv_test testName refName )
       ${CMAKE_CURRENT_BINARY_DIR}/tpcnv_${testName}.sh
       @ONLY )
 
+    set( _env )
+    if( ARG_REFERENCE_TAG )
+      set( _env ENVIRONMENT "ATLAS_REFERENCE_TAG=${pkgName}/${ARG_REFERENCE_TAG}" )
+    endif()
+
    # Create a test with it:
    atlas_add_test( ${testName}
       SCRIPT ${CMAKE_CURRENT_BINARY_DIR}/tpcnv_${testName}.sh
       PROPERTIES TIMEOUT 600
-      POST_EXEC_SCRIPT "post_tpcnvtest.sh ${testName}" )
+      POST_EXEC_SCRIPT "post_tpcnvtest.sh ${testName}" ${_env} )
 
 endfunction( run_tpcnv_test )