These keywords should not only set the *default* paper height/width but
also set the current values.

This reverts commit 56208a1b.

This reverts commit fabf6aa2.

Ugly duplication of the list if components. Could obviously do some
elegant refactoring to have each component mentioned just once. But on
the other hand, this is just a temporary way to build this unit test
app, no? If/when eventually gbuildifying this, the data from the
gb_CppunitTest_add_components calls in the correspondig
CppunitTest_FOO.mk files can be used, one hopes.

See also d2991722