Add ServiceProviderInterface annotation

[charphi]

@ServiceProviderInterface would be a simplified version of @ServiceDefinition with less options and better defaults.

Current issues:

• #singleton and #mutability usage is confusing
• there are too many options and some of them are used only in conjunction with others
• #quantifier is the main option but is not pushed forward clearly to the user
• custom class loader is not possible
• the backend mechanism is not flexible
• some default values are not ideal
• some combinations of options lead to invalid use cases
• the processor is difficult to test and maintain due to lot of options combination

Minimum features:

1. Quantifier
2. Custom class naming
3. Batch loading
4. Preprocessing (filtering/sorting/mapping)
5. Local caching
6. Reloading

Additional features:

7. Custom class loading
8. Thread safety
9. Lazy loading

[charphi]

Experiments available at https://github.com/nbbrd/java-service-util/tree/develop/java-service-annotation/src/test/java/experimental

[charphi]

Features so far (experiment 4):

1. One annotation per quantifier
2. Custom naming
3. Batch loading
4. Reloading
5. Custom backend
6. Fluent usage & convenient shortcut
7. Adapter for previous annotation
8. Catch unexpected exceptions during loading and report it

Next features:

9. Basic preprocessing (filtering/sorting/~mapping~)
10. Add specialized filter on system property
11. Annotation of third party code

Non-features:

• Advanced preprocessing
• Thread safety
• Lazy loading
• Singleton