message: Add unicode schema test
diff: -add_library(test_sql_catalog OBJECT test_create_from_select.cpp test_schema.cpp test_table.cpp)
  +add_library(test_sql_catalog OBJECT test_create_from_select.cpp test_schema.cpp test_table.cpp test_unicode_schema.cpp)
  set(ALL_OBJECT_FILES ${ALL_OBJECT_FILES} $<TARGET_OBJECTS:test_sql_catalog> PARENT_SCOPE)
  