Produce an embeddable Teiid engine

Teiid's federation and query processing features are of use to several other projects. An embeddedable form is desired such that:

• the application server is not required
• queries could be issued in the engine object model to by-pass parsing/validation and results retrieved without the need for JDBC
• new translators could be added

The following would be open for discussion:

• the inclusion of saxon/xom/nux for SQL/XML processing
• if the general deployment logic would be needed, or if just a single dynamic vdb is all that is needed

See the org.teiid.jdbc.FakeServer in the test-integration/common module for a rough approximation at the entry point for a embeddable server. Note that it is more geared at unit testing JDBC/ODBC rather than providing the features needed here.