* Created base implementation of the Parametric interface

* Added native support for encapsulating direct byte[] data as ExtractorDataSource
* External extractor calls now fail with exception message taken from the process's error output
* Added basic support for creating extractors from properties
* Added convenience factory methods to ExtendedProperties for loading from map and using class properties
* Modified multi-property behavior - if the number of parameters is not specified, an automatic loading is tried