offline-tests: fail on comparison in offline-tests (#2095)

Two main problems fixed here:
- offline tests will fail on a comparison failure (a mistake from the
re-write)
- art-group-info is committed to the repo and shared with every thread
(running the tests with 1 thread, for example on the CI, and locally
were producing different results)

art files are still not provided to the jak2 offline tests:
- `*-ag` files are not being output
- `art-elts.gc` is not complete, as a handful of files claim to be
missing stuff

lastly, in jak1's offline tests we were also running `tpage` and `*-vis`
files through the decompiler. This omits that (they came from the
`all_objs.json` file) -- is this an issue?

decompiler/config.cpp

@@ -64,6 +64,7 @@ Config read_config_file(const fs::path& path_to_config_file, const std::string&
   config.process_game_text = cfg.at("process_game_text").get<bool>();
   config.process_game_count = cfg.at("process_game_count").get<bool>();
   config.process_art_groups = cfg.at("process_art_groups").get<bool>();
+  config.dump_art_group_info = cfg.at("dump_art_group_info").get<bool>();
   config.hexdump_code = cfg.at("hexdump_code").get<bool>();
   config.hexdump_data = cfg.at("hexdump_data").get<bool>();
   config.find_functions = cfg.at("find_functions").get<bool>();