Finalize IGT Annotation and establish schema for presentation

[iljackb]

Need to finalize the method of creating IGT in TEI.

Also need to create/test a script that allows for:

1. a visualization of the annotations.
2. the export into usable formats, e.g. plain text for linguistic use in analysis and descriptions

Currently, this is done as follows:

Here is the language content:

               <seg type="S" xml:id="d1e174" xml:lang="mix">
                  <w xml:id="d1e175" orig="ka">Kaa</w>   
                  <w xml:id="d1e177">iñu</w>
                  <w xml:id="d1e179">ntaa</w>
                  <pc>.</pc>
               </seg>

And the IGT is below but note that it is NOT adjacent to the text, so any visualization

               <spanGrp type="igt">
                  <span target="#d1e175">cop-real</span>
                  <span target="#d1e177">six</span>
                  <span target="#d1e179">o'clock</span>
               </spanGrp>