Equality/Relational Operators

Support for Boolean operators would not be to difficult to add support for. Boolean operations to be added would include:

'<' Less
'>' Greater
'<=' Less than or equal to
'>=' Greater than or equal to
'==' Equality
'!=' Inequality Each of the operators above should be able to be implemented using existing OperatorExpression class sense they take the infix form {Expression} + {Operator} + {Expression}. Operators should be able to handle complex expressions on both sides:
```
-(21 / 2) ^ 2 ^ 2 > (2.4 + 3 * 4) / 3.5
```
It is unclear at the moment what the best way of returning results of a equality/relational operation is. The current idea is to return binary Boolean values (1.0 and 0.0). Another idea is to implement the use of generics to be able to return a true java Boolean value, this would have implications else where but it is not out of the scope of what is possible while keeping the library as small as possible

H-ANSEN / StrEvaluate