Statistics table, functionality
Statistics table, functionality

- Added a TableView to the statistics page.
- Columns are time (time completed), score, and level.
- On the completion of each level, a new TataiStatistic entry is
creation and added to the _statistics list of TataiStatistics.
- When the statistics page is requested, the table is shown and updated
with the current contents of the statistics list.

lirenn/tatai,lirenn/tatai