Replace config object adapters sequence with AdapterSet
Add insert method to AdapterSet
Restore AdapterSet insert usage
Simplify Config.adapters setter code
Fix legacy code in adapter set module
Fix defaults and overrides setting on construction
Simplify config register method
Update defaults and overrides support on Config object
Update README accordingly with AdapterSet integration
Merge branch 'feature/use_adapter_set_in_config' into develop