AsListener EventDiscovery

[GameSpecU]

I often use EventDiscovery in my projects - I missed it in this package :) Actually, native EventDiscovery could discover Actions, but it registers events based on handle method parameters instead of asListener

The feature works pretty much the same as Laravel's Event Discovery - it uses Lody instead of Finder as a difference

• I used an additional EventServiceProvider instead of the main ActionServiceProvider because laravel uses only these services in the event:cache command

• Since we are implementing all cases in the Action class, those without Event Class in handle method parameter are also registered

• Discovering Events may looks weird, because half is done by Collection, but second using hard-coded array flip. I tried different ways to make it done using Collection grouping but decided to leave it as it is because of performance reasons & complex/confusing operations - Maybe somebody knows a better way :)

Other changes:

• Updated Orchestra TestBench, because the previous version throws an error in package:discovery command
• The command above was needed to register dependent ServiceProviders (Lody in this particular case)

TODO

• [ ] Readme
• [ ] Refactor & Publish EventServiceProvider for per-project customization such as path-resolving
• [ ] Consider doing the above instead of using the config file

[Wulfheart]

Tbh I am not sure if a second service provider is the correct way forward here.