95, add xbase.dbf/.dbt for testing MEMO column

Add sample file xbase.dbf/.dbt from
http://www.cs.cmu.edu/~varun/cs315p/xbase.txt

Add unit test TestDbfDriver.testMemoColumn
Merge branch 'master' of ssh://git.code.sf.net/p/csvjdbc/code
Moved new testdata to mavenized locatioin