Create ConfigurationParser class for calling desired scanner

[OlehYakovenko]

Class should decide what scanner should be used (including merge of results?), default scanner is ClassPathAnnotationBased scanner

[JoshukLite]

Main goal of this class is to recursively call ClassPathAnnotationBasedScanner to get all found BeanDefinition's by provided configuration class. Recursively means if scanner will return BeanDefinition for another configuration with annotation to scan other packages then it should also search for BeanDefinitions in that other package. Class will return all recursively found BeanDefinitions found in all search packages.
Implementation note:

• Parsing of configuration class could be done in separate class, this will improve readability and testing
• class should have method that takes search class to parse and return collection of found BeanDefinitions, something like public List<BeanDefinition> parse(Class<?> configurationClass)
• parse method should call itself if one of the found BeanDefinitions is configuration class