Adding @Target to annotations

Now that the annotation parser has support for the @Target annotation, we should also add it to the annotations of the ORM.

I have looked through the mapping file, but I'm not familiar with all the annotations, so someone else is probably better suited to add them.

Usage is as follows:

@Target("CLASS") for a single target
@Target(

) for multiple targets (annotation if it can be used as a nested annotation)