Fix the AnyPIAJS tests: Recompile AnyPIAJS for NodeJS

[thadk]

Make another build of AnyPIAJS with the latest version for late 2020, and that works with NodeJS.

I used the below line to replace https://github.com/codeforboston/anypia-js/blob/master/anypiajs/CMakeLists.txt#L67 along with ./installbuild-emscripten-mac.sh to compile it for this project using the July 2020 version of Emscripten.

In this repo, I permanently cached a version of the generated 1.9mb web assembly binary file as /src/static/anypiajs.wasm (it is a special Gatsby folder like /public/). I also added the associated file https://github.com/codeforboston/windfall-elimination/blob/243a300b9ad7316bb6af586f6d15ec060b7610f9/src/library/anypiajs.mjs.

set_target_properties(${PROJECT_NAME} PROPERTIES COMPILE_FLAGS "-s USE_BOOST_HEADERS=1" LINK_FLAGS "-s USE_BOOST_HEADERS=1 -s EXPORT_ES6=1 -s USE_ES6_IMPORT_META=1 -s ENVIRONMENT=web -MODULARIZE=1 -s WASM=1 --bind ${EXPORTED_FUNCTIONS} ${EXPORTED_RUNTIME_METHODS}")

In the resulting anypiajs.mjs, I had to manually edit

var Module = (function() {
  var _scriptDir = import.meta.url;

to

var Module = (function() {
  var _scriptDir = "/anypiajs.wasm";

This ENVIRONMENT=web piece breaks nodejs testing though, so the tests I wrote in https://github.com/codeforboston/windfall-elimination/blob/243a300b9ad7316bb6af586f6d15ec060b7610f9/src/test/pia-index.test.ts cannot run yet.

If we make another version, we should make a new versioned name for this wasm filename (and update the path in the manual edit, since that one will be permanently cached once we merge it)