This commit belongs to issue #4, allow to set the EqFct code in mapping file.
In VariableMapper a std::map with location(string) and code(int) was added.
With getLocationAndCode() this map is returned and used in eq_creat.cc to add missing locations with
10 default, or with 'code' set in the <location> tag in the mappinmg xml file.

Fixes #21

This closes #19

git-svn-id: https://svnsrv.desy.de/desy/mtca4u_applications/DOOCS_Adapter/trunk@75 688d77b5-b833-4f6b-b27f-eb88d88625d6