uniwbrk/u32-wordbreaks-tests: add conformance test * modules/uniwbrk/u32-wordbreaks-tests (Files): Add tests/uniwbrk/test-uc-wordbreaks.c, tests/uniwbrk/test-uc-wordbreaks.sh, and tests/uniwbrk/WordBreakTest.txt. (Makefile.am): Add uniwbrk/test-uc-wordbreaks.sh to $(TESTS), add test-uc-wordbreaks to $(check_PROGRAMS), and define test_uc_wordbreaks_SOURCES and test_uc_wordbreaks_LDADD. * tests/uniwbrk/test-uc-wordbreaks.sh: New file. * tests/uniwbrk/test-uc-wordbreaks.c: New file.