Enhansement: store source text fratment in reference #189

When i search to bible refs inside some text - want to wrap source text fragments like this:

Mat.16:18-19; 18: 17-18
should be transformed to:
<a href="site?b:47 16:18-19">Mat.16:18-19; </a><a href="site?b:47 18:17-18">18: 17-18</a>

I don't want to replace bare text of this refs by generated with your parser, i only want to "activate" this links.

For this - it will be wery useful, if BibleRange will should have property raw_text, that stores fragment, or start_index, end_index, to refer with source text fragments.