ICU-22746 Refactor some MF2 tests to be data-driven #2158

Job	Run time
clang-valgrind-intltest (utility)	6m 47s
clang-valgrind-test	9m 56s
clang-valgrind-intltest (normalize)	6m 16s
clang-valgrind-intltest (collator)	5m 33s
clang-valgrind-intltest (regex)	5m 5s
clang-valgrind-intltest (format)	16m 23s
clang-valgrind-intltest (translit)	5m 40s
clang-valgrind-intltest (rbbi)	7m 16s
clang-valgrind-intltest (rbnf)	5m 58s
clang-valgrind-intltest (rbnfrt)	5m 52s
clang-valgrind-intltest (icuserv)	5m 20s
clang-valgrind-intltest (idna)	5m 1s
clang-valgrind-intltest (convert)	6m 46s
clang-valgrind-intltest (rbnfp)	5m 5s
clang-valgrind-intltest (csdet)	5m 18s
clang-valgrind-intltest (spoof)	4m 52s
clang-valgrind-intltest (bidi)	5m 14s
	1h 52m 22s

Provide feedback