tests: move to subdir, move to meson

De-clutter the source directories a bit. Ensure tests build with meson, and
remove from autotools in a few places (no need to do things twice).

lib/utils/Makefile.am

@@ -79,52 +79,4 @@ libmu_utils_la_LIBADD=						\
 	$(READLINE_LIBS)					\
 	$(CODE_COVERAGE_LIBS)
 
-noinst_PROGRAMS=						\
-	$(TEST_PROGS)
-
-TEST_PROGS+=							\
-	test-mu-util
-test_mu_util_SOURCES=						\
-	test-mu-util.c
-test_mu_util_LDADD=						\
-	libmu-utils.la
-
-TEST_PROGS+=							\
-	test-mu-utils
-test_mu_utils_SOURCES=						\
-	test-utils.cc
-test_mu_utils_LDADD=						\
-	libmu-utils.la
-
-TEST_PROGS+=							\
-	test-mu-str
-test_mu_str_SOURCES=						\
-	test-mu-str.c
-test_mu_str_LDADD=						\
-	libmu-utils.la
-
-TEST_PROGS+=							\
-	test-sexp
-test_sexp_SOURCES=						\
-	test-sexp.cc
-test_sexp_LDADD=						\
-	libmu-utils.la
-
-TEST_PROGS+=							\
-	test-command-parser
-test_command_parser_SOURCES=					\
-	test-command-parser.cc
-test_command_parser_LDADD=					\
-	libmu-utils.la
-
-TEST_PROGS+=							\
-	test-option
-test_option_SOURCES=						\
-	test-option.cc
-test_option_LDADD=						\
-	libmu-utils.la
-
-
-TESTS=$(TEST_PROGS)
-
 include $(top_srcdir)/aminclude_static.am