ticket:9101: Updated MSVC project file to include new source files.

git-svn-id: http://source.icu-project.org/repos/icu/icu@33929 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9101: parse maxVariable setting, and minor Latin-1 optimization

git-svn-id: http://source.icu-project.org/repos/icu/icu@33930 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10253 PluralRules for C++, work in progress.

git-svn-id: http://source.icu-project.org/repos/icu/icu@33931 251d0590-4201-4cf1-90de-194747b24ca1