Operators class renamed as TypingEnvironment + operators attribute renamed as te

src/main/java/Main.java

src/main/java/complexityparser/Model.java

...n/java/complexityparser/tierTypingVisitors/FinalPass.java

...n/java/complexityparser/tierTypingVisitors/FirstPass.java

.../java/complexityparser/tierTypingVisitors/SecondPass.java

...parser/tierTypingVisitors/base/BaseExpressionVisitor.java

...complexityparser/tierTypingVisitors/base/BaseVisitor.java

...mplexityparser/tierTypingVisitors/base/ObjectVisitor.java

src/main/java/complexityparser/types/Operator.java

.../complexityparser/types/env/OperatorTypingEnvBuilder.java

src/main/java/complexityparser/types/env/TypingEnv.java