Simplify service container extensions
Update internal exceptions
Update file system loaders

- Add file loader
- Add PHP file loader
- Add loader collection
- Add loader container extension
- Update application factory
- Update file system container extension
Add test results, handlers, and formatters
Standardise console output colours
Add functional API

- Add API manager and extension
- Add API controller to accept options
- Add functional API namespaced functions
- Add optional (but recommended) function mount
- Add functional test global suite registry