Verify that the OpenDocument writer uses predefined list, paragraph, and
text styles instead of generating per-instance automatic styles.

```
% pandoc -t opendocument
- one
- two

1. ordered one
2. ordered two

Some *italic*, **bold**, ~~strike~~, and `code`.

> A block quote.

Final paragraph.
^D
<text:list text:style-name="List_20_1">
  <text:list-item>
    <text:p text:style-name="List_20_Bullet_20_Tight">one</text:p>
  </text:list-item>
  <text:list-item>
    <text:p text:style-name="List_20_Bullet_20_Tight">two</text:p>
  </text:list-item>
</text:list>
<text:list text:style-name="Numbering_20_1">
  <text:list-item>
    <text:p text:style-name="List_20_Number_20_Tight">ordered
    one</text:p>
  </text:list-item>
  <text:list-item>
    <text:p text:style-name="List_20_Number_20_Tight">ordered
    two</text:p>
  </text:list-item>
</text:list>
<text:p text:style-name="First_20_paragraph">Some
<text:span text:style-name="Emphasis">italic</text:span>,
<text:span text:style-name="Strong_20_Emphasis">bold</text:span>,
<text:span text:style-name="Strikeout">strike</text:span>, and
<text:span text:style-name="Source_20_Text">code</text:span>.</text:p>
<text:p text:style-name="Quotations">A block quote.</text:p>
<text:p text:style-name="First_20_paragraph">Final paragraph.</text:p>
```

A non-default ordered list (start value other than 1, or non-decimal
format) generates a single named override style, not one per instance.

```
% pandoc -t opendocument
A) upper-alpha one
B) upper-alpha two

5. start at five
6. and continue
^D
<text:list text:style-name="Pandoc_5f_Numbering_5f_1">
  <text:list-item>
    <text:p text:style-name="List_20_Number_20_Tight">upper-alpha
    one</text:p>
  </text:list-item>
  <text:list-item>
    <text:p text:style-name="List_20_Number_20_Tight">upper-alpha
    two</text:p>
  </text:list-item>
</text:list>
<text:list text:style-name="Numbering_20_1" text:start-value="5">
  <text:list-item>
    <text:p text:style-name="List_20_Number_20_Tight">start at
    five</text:p>
  </text:list-item>
  <text:list-item>
    <text:p text:style-name="List_20_Number_20_Tight">and
    continue</text:p>
  </text:list-item>
</text:list>
```

A nested block quote uses the predefined `Quotations` style for the
outer paragraph, and inherits indent from it for the inner paragraph.

```
% pandoc -t opendocument
> First.
>
> > Nested.
^D
<text:p text:style-name="Quotations">First.</text:p>
<text:p text:style-name="P1">Nested.</text:p>
```
