Component queries are not really correct

[io7m]

In SyWindowViewportAccumulator, the accumulate method assumes that negative offsets are invalid, and it clamps them. Scroll panes use negative offsets inside viewports. This test fails immediately:

  @Test
  public void testNegativeOffset()
  {
    final var accum =
      SyWindowViewportAccumulator.create();

    accum.reset(300, 300);
    accum.accumulate(PAreasI.create(-100, -100, 200, 200));

    assertEquals(-100, accum.minimumX());
    assertEquals(-100, accum.minimumY());
    assertEquals(100, accum.maximumX());
    assertEquals(100, accum.maximumY());
  }

[io7m]

This is now fixed.