Parameterize (or eliminate) high-level qualifier (schema) for TCK test application table names

See discussion in https://github.com/eclipse-ee4j/batch-tck/issues/51, where we agreed to workaround the limitation and close the TCK challenge, while opening a new issue (this issue) to enhance the TCK in the future.

Start with the discussion in eclipse-ee4j/batch-tck#51, then inspect how the TCK test application table names use a high-level schema qualifier. Done means agreeing on and implementing a future approach that parameterizes or eliminates that qualifier.

Written by the indexing model from the issue text.