New features and improvements

[emaiannone]

• Wrap everything it.unisa.plugin packages
• Change some interfaces, e.g., there are some ArrayList to be changes in List
• Make AnalysisDriver and ProposalDriver without state and their core method receive all parameters
• Rename startAnalysis() into analyze()
• Rename computeProposal() into propose()
• Package filtering should be done by CoreDriver, not by AnalysisDriver (so that it won't need targetPackage anymore)
• Similarly to ProposalDriver, AnalysisDriver should be constructed on the list of analyzers and launch the analysis on the list of files.
• LT allow static Thread constructor
• MIM and IDS propagate changes
• Improve Smell Dialog UI with Filtering option
• Return more than one smell instance per class
• Add progress bar during analysis (while showing the analyzed files)
• Use better multithreading during analysis
• Improve exception and errors handling
• Implement Fix all feature button