LibreOffice Being Ported To The Web Browser Via EmScripten

While there is already LibreOffice Online as a cloud-based version of the open-source office suite, there's a new, separate effort underway for getting LibreOffice in web browsers.

A port of LibreOffice to EmScripten has started for compiling this office suite into optimized JavaScript for web browsers. This commit adds the initial porting of EmScripten so at least the build system is there.

This Wiki page details the ongoing work of porting LibreOffice to EmScripten with the eventual goal of running it in a web browser. As of today's code, the configure setup runs but a lot of external modules still need to be supported.