KIJIMRLIB-8. Moved common log format table layout and table import descriptor files out of test.

Signed-off-by: Christophe Taton <taton@wibidata.com>
KIJIMR-72. Adds the KijiTableImportDescriptor from Kiji MapReduce

Signed-off-by: Christophe Taton <taton@wibidata.com>