Copy ICU 56 release from icu-project.org to aosp/icu56.

These files were exported from the ICU Subversion repository by running
the following commands:

svn export \
  http://source.icu-project.org/repos/icu/icu/tags/release-56-1/ icu4c
svn export \
  http://source.icu-project.org/repos/icu/icu4j/tags/release-56-1/ icu4j

Change-Id: I52d2907ecd7d175615e09cab0dcbbed9df6f7c0f
4 files changed