Add java keywords
Add constructors to calculation of AGV metric
Fixed bug in StringHelper when taking param and indexed string
Add new Mayers metrics
Remove InvalidCodeExcepton from Parser/Exceptions to Common/Exceptions and
Fixed bug in java parser
Finilaze implementation Mayers metric (without used label, break and countinue)
Add algorithm geting all vertices and edges in class Graph
Add used label and break to Mayers metric
Add tenar operator to Mayers metric
Add Helstead metric
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Add some modifications to UI
Add View in AGV metric
Add View in AGV metric
Add View in Halstead metric
Add parser extension