ticket:10268: Generate code for MeasUnit.h

git-svn-id: http://source.icu-project.org/repos/icu/icu/branches/tkeep@34884 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10268: Test out MeasureUnit code so far.

git-svn-id: http://source.icu-project.org/repos/icu/icu/branches/tkeep@34892 251d0590-4201-4cf1-90de-194747b24ca1