Created the file for the ClassAnalyzer

The ClassAnalyzer is able to analyze AST structures to search for classes in the AST.
Created data structure for a class.

The structure for a class contains the name of the class, the name of the class it extends from and the raw AST.
Remove the dependency to an intent from the class data structure
Add the Class data structure to the data structure of an Intent.

This data is necessary to create the superclass for the class, because it needs to know the extending class name. The generated superclass must extend this class.
Add method to scan given asts instead of a folder location with java files.
Merge branch 'master' of https://github.com/qhoekman/rascal-android-analyzer