Demo of libzim in Webassembly

Require emscripten => https://github.com/kripken/emscripten

Demo at https://dattaz.github.io/libzim_wasm/

#Using JS file object Demo with file object at https://dattaz.github.io/libzim_wasm/file_api/index.html it's use WORKERFS as FS with emscripten and run in a web worker, file object is mount before run, and name is pass as argument