Fix the Teiid Build so that the java docs can be built on the first pass

In order to build the javadocs in the Teiid project, 2 maven build passes are required to be run. This is because of the order of maven dependencies, causing the javadoc's to fail because the jar's have not been built. A suggested fix is to move the javadocs build into its own project, similarly to how modeshape resolved this issue.