more code refactoring

src/main/java/RunExperiment.java

src/main/java/agents/RandomWalkingAgent.java

src/main/java/agents/states/ExposedSEIRSState.java

src/main/java/agents/states/InfectedSEIRSState.java

src/main/java/agents/states/RecoveredSEIRSState.java

src/main/java/agents/states/SuceptibleSEIRSState.java

src/main/java/environment/ChunkedSEIRSEnvironment.java

src/main/java/environment/Environment2D.java

src/main/java/environment/SEIRSEnvironment.java

src/main/java/environment/SquareEnvironment2D.java

src/main/java/scheduler/AsynchronousScheduler.java

src/main/java/scheduler/FairAsynchronousScheduler.java

src/main/java/scheduler/FairSynchronousScheduler.java

src/main/java/scheduler/SynchronousScheduler.java

src/main/java/sma/SEIRS_SMA.java

src/main/java/sma/SMA.java

src/main/java/view/DisplaySquaredEnvironment.java

src/main/resources/parameters.yaml