When a block is out of page bounds but there is no page after, insert a page to move the block into it

[zbeyens]

Given

• first page height 100
• block height 60
• second block is out of bounds

<editor>
          <hpage>
            <hp>1</hp>
            <hp>2</hp>
          </hpage>
        </editor>

When

• normalizing page

Then

• insert second page
• move second block to second page

<editor>
          <hpage>
            <hp>1</hp>
          </hpage>
          <hpage>
            <hp>2</hp>
          </hpage>
        </editor>