tests: Added string view suite

sv_copy is the only function, but we may have others later.

test/main.c

@@ -12,12 +12,14 @@
 #include "./test.h"
 
 #include "./test_lisp_api.c"
+#include "./test_sv.c"
 #include "./test_symtable.c"
 #include "./test_vec.c"
 
 test_suite_t SUITES[] = {
     SYMTABLE_SUITE,
     LISP_API_SUITE,
+    SV_SUITE,
     VEC_SUITE,
 };