First commit
Implemented normal distribution
Created AbstractGenerator as superclass for other generators.
Implemented actual mean and actual variance
Implemented skew generator
Added values == null check to keep subclasses not reliant on
generateValues().
Implemented UniformGenerator
Implemented RandomGenerator
Implemented BimodalGenerator
Placed test main() in AbstractGenerator
Implemented getting samples.
Implemented sample variance
Offloaded input UI logic to views
Added distribution radio buttons
Added Generator strategies for controller
Renamed Sampling to Sampler
Spinner is now set properly
Connected input to controller
Deleted Binomial, remnant from previous project