Add OpenJDK 11 repository into the CompareUpstreams tool

Also,
- Add a few columns to print the diff percentage for more repositories
- Print the source path of the guessed upstream

Test: m libcore-compare-upstreams && java -jar out/host/common/obj/JAVA_LIBRARIES/libcore-compare-upstreams_intermediates/javalib.jar
Change-Id: Ib9310199143ef545c8032fa7ac514c49927d7b10
3 files changed