ticket:10541: branch for x64 work

git-svn-id: http://source.icu-project.org/repos/icu/icuapps/branches/srl@34648 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10541: start on x64 integration


git-svn-id: http://source.icu-project.org/repos/icu/icuapps/branches/srl@34649 251d0590-4201-4cf1-90de-194747b24ca1