Updated tests and test results for generation of tuples
Removed Java Tuples dependency as this is no longer needed due to the new strategy for generation of tuples
Made clone method visible in the Java interface implemented by generated tuples
Removed code needed for formatting of generated tuples as this is no longer needed
Removed OO AST analysis code related to the old strategy for generation of tuples
Added support class for Java generated tuple values and types. Tuples are instantiated using Tuple.mk_(...) and 'Tuple' refers to the type of any tuple.