Initial start on CMakeLists.txt.
Initial start on CMakeLists.txt.

This is not yet complete as it doesn't perform the emscripten
build stage, nor does it attempt to run tests.

This is work in progress on issue #2.

WebAssembly/binaryen,WebAssembly/binaryen,yurydelendik/binaryen,yurydelendik/binaryen,WebAssembly/binaryen,ddcc/binaryen,yurydelendik/binaryen,WebAssembly/binaryen,yurydelendik/binaryen,ddcc/binaryen,ddcc/binaryen,yurydelendik/binaryen,WebAssembly/binaryen,ddcc/binaryen,ddcc/binaryen