InMemory ETL: Error pinpointing

Add error reporting that pinpoints the exact location of an error. 
Right now when an error happens we don't have any kind of information where has it happened in the ETL Studio project! Only vague reference to a IMP script line and even more vague error description (that is in considerable number of cases outright wrong - like column is missing while the whole table does not exist)
It would be extremely useful to know the name of the component that has failed
It is sometimes easier to delete all the changes for a day of development and redo them then to find the error