Specifies whether the images embedded in the annotation text must be copied to the documentation destination directory.
<p>
If this parameter is <code><b>true</b></code> (checked), all images referred from <code>&lt;img&gt;</code> tags
will be automatically copied to the associated files directory (e.g. "doc-files") of the schema documentation.
The <code>src</code> attribute of each <code>&lt;img&gt;</code> tag will be altered to point to the new image location.
<p>
When the parameter is <code><b>false</b></code> (unchecked), no images will be physically copied.
Instead, the original image source URLs (specified in XHTML <code>&lt;img&gt;</code> elements) will be
used as image references in the generated output as well.