remove errors for view creation from model join query

assets/model_join/simple.modeljoin

...i_project/model_sync/generator/acr_model/SJoinClass.scala

...i_project/model_sync/generator/acr_model/SViewClass.scala

...g/rosi_project/model_sync/generator/io/SClassWriter.scala

...rosi_project/model_sync/generator/io/SModelFSWriter.scala

...ect/model_sync/generator/sync/JoinGeneratingVisitor.scala

..._sync/generator/sync/ModelJoinViewGeneratingVisitor.scala

...i_project/model_sync/generator/sync/ToStringMethods.scala

...ect/model_sync/generator/sync/ViewGeneratingVisitor.scala

...i_project/model_sync/generator/test/ApplicationTest.scala

..._project/model_sync/generator/test/SClassWriterTest.scala