TableDetailFragment: Show database data.

* app/src/main/java/org/glom/app/TableListFragment.java:
  Move the utility methods into:
* app/src/main/org/glom/app/Utils.java
* app/src/main/org/glom/app/TableDetailActivity.java: onCreate():
  Pass the primary key to the fragment.
* app/src/main/org/glom/app/TableDetailFragment.java:
  Get the primary key value and use it when create the value
  TextView.