Switch to DAISY pipeline 2 for conversions

[NPavie]

Context

The actual conversion of the word document to any format (dtbook xml or daisy 2.02) within the addin is currently done using the following chain of treatment :

• A first pass of data pre computation is done using Word object model to retrieve complex data like math equations and vectorial shapes
• The word document xml is then converted to dtbook using a set of xslt 1 stylesheets (and a csharp helper class) with the .net internal xsl engine
• The dtbook xml is then cleaned up and optionnaly converted to DAISY 2.02 using the daisy pipeline 1.

Problematic

The current chain has 2 main issues :

• the pipeline 1 used in the addin has reached end of support, with possibly only one last update planned in the ongoing year
  • All development efforts are mainly dedicated to the DAISY Pipeline 2, including the addition and support of new export format like EPUB 3
• The conversion with xslt 1 stylesheets limit the reusability of the code for other project, especially for the DAISY Pipeline 2 that uses the Saxon engine

Objectives

• Replace pipeline 1 dtbook to daisy 3 scripts by the DAISY Pipeline 2 version #27
• Replace pipeline 1 dtbook cleaning script by a DAISY Pipeline 2 equivalent #28
• Fix SAPI / OneCore TTS within DAISY pipeline 2
• Migrate the word to dtbook conversion code to DAISY Pipeline 2 #29