ticket:9101: add array lengths to CollationData so that we can serialize it without needing a builder

git-svn-id: http://source.icu-project.org/repos/icu/icu/branches/markus@34441 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9101: RBC::getRules(UColRuleOption), getLocale()

git-svn-id: http://source.icu-project.org/repos/icu/icu/branches/markus@34457 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9101: set & propagate collator version numbers

git-svn-id: http://source.icu-project.org/repos/icu/icu/branches/markus@34461 251d0590-4201-4cf1-90de-194747b24ca1