add support for inline templates

inline templates:

* with anonymous classes
* with lambda

### Inline templates

Templates can be made inline, if the source code of the transformation is passed appropriately, as an anonymous class, as follows:

```java
// example of inline template definition + instantiation
Template t = new StatementTemplate() {
TemplateParameter> _col_ = createVariableAccess(method.getParameters().get(0));
@Override
public void statement() {
if (_col_.S().size() > 10)
throw new OutOfBoundException();
}
}; // end of inline template
CtStatement injectedCode = t.apply();
```