Add a polyfill for Array.from(), and fix the console formatter so that
it won't keep exploding. This should improve matters in the tests.
Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>
In order to support the console logging formatting specification
as per https://console.spec.whatwg.org/#logger we need to implement
the Formatter(...) algorithm which is easier done within JavaScript
Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>
