decompiler: Cleanup duplication in extractor/decompiler and make it easier to enable streamed audio ripping from CLI (#3560)

This centralizes the code that both `extractor` and the decompiler
executes. In the past this code was partially-duplicated, meaning that
the `extractor` could only do _some_ operations and not others (ie.
could not extract the audio files).

I also simplified the process to enable audio streaming in the
configuration. This is to support a new feature in the launcher that
allows you to enable these options for the decompiler:


![image](https://github.com/open-goal/jak-project/assets/13153231/8e6c20a1-8b5b-46f0-bceb-7644f713989f)

decompiler/config.cpp

@@ -64,7 +64,6 @@ Config make_config_via_json(nlohmann::json& json) {
         inputs_json.at("str_art_file_names").get<std::vector<std::string>>();
   }
 
-  config.audio_dir_file_name = inputs_json.at("audio_dir_file_name").get<std::string>();
   config.streamed_audio_file_names =
       inputs_json.at("streamed_audio_file_names").get<std::vector<std::string>>();
 
@@ -321,6 +320,9 @@ Config make_config_via_json(nlohmann::json& json) {
   if (json.contains("save_texture_pngs")) {
     config.save_texture_pngs = json.at("save_texture_pngs").get<bool>();
   }
+  if (json.contains("rip_streamed_audio")) {
+    config.rip_streamed_audio = json.at("rip_streamed_audio").get<bool>();
+  }
 
   if (inputs_json.contains("animated_textures")) {
     config.animated_textures =