ALTER TABLE HBASE OPTIONS command for Trafodion

Add the ability to change HBase table options for a Trafodion table or index to the ALTER TABLE or INDEX DDL statement.

Add REGEXP predicate for Trafodion

Add support for regular expression pattern matching to Trafodion's SQL dialect. The support will follow the design of the existing LIKE predicate, reusing (and/or refactoring) its code as needed. For run-time semantics, we will use the RE2 regular expression package (http://code.google.com/p/re2/).