Add an option for generation of entityAccessors with name following Bean convention (getFieldName)

[xlaussel]

Why the new feature should be added

This would allow to manipulate the Q classes with bean dedicated functions.
For kotlin developpers, the accessors would behave like a readonly property (val). They could also switch from final fields to accessors without modifying the code.

How the new feature should work

Now for example, the accessor name generated for the property "myProperty" is myProperty().
We can add an option - for example querydsl.beanEntityAccessors - that will make the accessor generated name be
"getMyProperty()". I think it is quite easy to implement.